Tuesday, July 14, 2009

Economics

Rana Rizwan Javed
M.A Economics
Islamia University
Bahawalpur(Punjab)
Pakistan.

I am interested in economics policies, and I also made some policies those are running in industries.

Introduction of Economics.

Economics is the social science that studies the production, distribution, and consumption of goods and services. The term economics comes from the rules of the house(hold).Current economic models developed out of the broader field of Political economics in the late 19th century, owing to a desire to use an empirical approach more akin to the physical sciences.A definition that captures much of modern economics is that of Lionel Robbins in a 1932 essay: "the science which studies human behaviour as a relationship between ends and scarce means which have alternative uses."Scarcity means that available resources are insufficient to satisfy all wants and needs. Absent scarcity and alternative uses of available resources, there is no economic problem. The subject thus defined involves the study of choices as they are affected by incentives and resources.Economics aims to explain how economies work and how economic agents interact. Economic analysis is applied throughout society, in business, finance and government, but also in crime, education, the family, health, law, politics, religion, social institutions, war, and science. The expanding domain of economics in the social sciences has been described as economic imperialism Common distinctions are drawn between various dimensions of economics: between positive economics (describing "what is") and normative economics (advocating "what ought to be") or between economic theory and applied economics or between mainstream economics (more "orthodox" dealing with the "rationality-individualism-equilibrium nexus") and heterodox economics (more "radical" dealing with the "institutions-history-social structure nexus"). However the primary textbook distinction is between microeconomics ("small" economics), which examines the economic behavior of agents (including individuals and firms) and macroeconomics ("big" economics), addressing issues of unemployment, inflation, monetary and fiscal policy for an entire economy.

Types of Economics

1. Microeconomics
2. Macro Economics
3. Econometrics
4. International Trade
5. Statistical Economics
6. Islamic Economics
7. Development Economics
8. Mathmetical Economics


1. Microeconomics

Microeconomics is a branch of economics that studies how households and firms and some states make decisions to allocate limited resources, typically in markets where goods or services are being bought and sold. Microeconomics examines how these decisions and behaviours affect the supply and demand for goods and services, which determines prices; and how prices, in turn, determine the supply and demand of goods and services.
This is a contrast to macroeconomics, which involves the "sum total of economic activity, dealing with the issues of growth, inflation and unemployment, and with national economic policies relating to these issues".Macroeconomics also deals with the effects of government actions on them.Particularly in the wake of the Lucas critique, much of modern macroeconomic theory has been built upon 'microfoundations' — i.e. based upon basic assumptions about micro-level behaviour.
One of the goals of microeconomics is to analyze market mechanisms that establish relative prices amongst goods and services and allocation of limited resources amongst many alternative uses. Microeconomics analyzes market failure, where markets fail to produce efficient results, as well as describing the theoretical conditions needed for perfect competition. Significant fields of study in microeconomics include general equilibrium, markets under asymmetric information, choice under uncertainty and economic applications of game theory. Also considered is the elasticity of products within the market system.


a. Principles of Microeconomics
b. Keynesian Economics
c. Neoclassical Economics
d. Aggregate demand
e. Aggregate supply
f. Firm Behaviour
g. Labour Market
h. Monoplistic Competition
I. Profit maximization in microeconomics
J. Elasticity of microeconomics .

2. Macro Economics


Macroeconomics a branch of economics that deals with the performance, structure, and behavior of a national or regional economy as a whole. Along with microeconomics, macroeconomics is one of the two most general fields in economics. It is the study of the behavior and decision-making of entire economies. Macroeconomists study aggregated indicators such as GDP, unemployment rates, and price indices to understand how the whole economy functions. Macroeconomists develop models that explain the relationship between such factors as national income, output, consumption, unemployment, inflation, savings, investment, international trade and international finance. In contrast, microeconomics is primarily focused on the actions of individual agents, such as firms and consumers, and how their behavior determines prices and quantities in specific markets.

While macroeconomics is a broad field of study, there are two areas of research that are emblematic of the discipline: the attempt to understand the causes and consequences of short-run fluctuations in national income (the business cycle), and the attempt to understand the determinants of long-run economic growth (increases in national income).

Macroeconomic models and their forecasts are used by both governments and large corporations to assist in the development and evaluation of economic policy and business strategy.

Classical economics and the quantity theory of money

Main article: quantity theory of money

Until the early twentieth century, the quantity theory of money dominated as the favored macroeconomic model among classical economists. This theory gives the equation of exchange:

M\cdot V = P\cdot Q

The equation states that the 'money supply' times the velocity of money (how quickly cash is passed from one person to another through a series of transactions) is equivalent to nominal output (price level times quantity of goods and services produced). Classical economists, such as Irving Fisher assumed that real income and the velocity of money would be static in the short-run, so, based on this theory, a change in price level could only be brought about by a change in money supply. This equation is the central foundation for the economic school of thought known as monetarism. The classical quantity theory of money assumed that the demand for money was static and independent of other factors such as interest rates. Economists questioned the classical quantity theory of money during the Great Depression when the demand for money, and thus the velocity of money, fell sharply.

Until the 1930s, most economic analysis did not separate out individual behavior from aggregate behavior[citation needed]. With the Great Depression of the 1930s and the development of the concept of national income and product statistics, the field of macroeconomics began to expand[citation needed]. Before that time, comprehensive national accounts, as we know them today, did not exist. The ideas of the British economist John Maynard Keynes, who worked on explaining the Great Depression, were particularly influential.

One of the challenges of economics has been a struggle to reconcile macroeconomic and microeconomic models. Starting in the 1950s, macroeconomists developed micro-based models of macroeconomic behavior, such as the consumption function. Dutch economist Jan Tinbergen developed the first national macroeconomic model, which he first built for the Netherlands and later applied to the United States and the United Kingdom after World War II. The first global macroeconomic model, Wharton Econometric Forecasting Associates LINK project, was initiated by Lawrence Klein and was mentioned in his citation for the Nobel Memorial Prize in Economics in 1980.

Theorists such as Robert Lucas, Jr. suggested (in the 1970s) that at least some traditional Keynesian (after John Maynard Keynes) macroeconomic models were questionable as they were not derived from assumptions about individual behavior, but instead based on observed past correlations between macroeconomic variables. However, New Keynesian macroeconomics has generally presented microeconomic models to shore up their macroeconomic theorizing, and some Keynesians have contested the idea that microeconomic foundations are essential, if the model is analytically useful. An analogy is the acceptance of continuous methods (e.g. hydrodynamics or elasticity theory) in physics despite our knowledge of subatomic particles.

The various schools of thought are not always in direct competition with one another, even though they sometimes reach differing conclusions. Macroeconomics is an ever evolving area of research. The goal of economic research is not to be "right," but rather to be useful (Friedman, M. 1953). An economic model, according to Friedman, should accurately reproduce observations beyond the data used to calibrate or fit the model.

The traditional distinction is between two different approaches to economics: Keynesian economics, focusing on demand; and neoclassical economics based on rational expectations and efficient markets. Keynesian thinkers challenge the ability of markets to be completely efficient generally arguing that prices and wages do not adjust well to economic shocks. Neither view is typically endorsed to the complete exclusion of the other, but most schools do emphasize one or the other approach as a theoretical foundation.

Keynesian economics was an academic theory heavily influenced by the economist John Maynard Keynes. This period focused on aggregate demand to explain levels of unemployment and the business cycle. That is, business cycle fluctuations should be reduced through fiscal policy (the government spends more or less depending on the situation) and monetary policy. Early Keynesian macroeconomics was "activist," calling for regular use of policy to stabilize the capitalist economy, while some Keynesians called for the use of incomes policies.

Neo-Keynesians combined Keynes thought with some neoclassical elements in the neoclassical synthesis. Neo-Keynesianism waned and was replaced by a new generation of models that made up New Keynesian economics, which developed partly in response to new classical economics. New Keynesianism strives to provide microeconomic foundations to Keynesian economics by showing how imperfect markets can justify demand management.

Post-Keynesian economics represents a dissent from mainstream Keynesian economics, emphasizing the importance of demand in the long run as well as the short, and the role of uncertainty, liquidity preference and the historical process in macroeconomics.

For decades Keynesians and classical economists split in to autonomous areas, the former studying macroeconomics and the latter studying microeconomics. In the 1970s New Classical Macroeconomics challenged Keynesians to ground their macroeconomic theory in microeconomics. The main policy difference in this second stage of macroeconomics is an increased focus on monetary policy, such as interest rates and money supply. This school emerged during the 1970s with the Lucas critique. New Classical Macroeconomics based on rational expectations, which means that choices are made optimally considering time and uncertainty, and all markets are clearing. New Classical Macroeconomics is generally based on real business cycle models.

Monetarism, led by Milton Friedman, holds that inflation is always and everywhere a monetary phenomenon. It rejects fiscal policy because it leads to "crowding out" of the private sector. Further, it does not wish to combat inflation or deflation by means of active demand management as in Keynesian economics, but by means of monetary policy rules, such as keeping the rate of growth of the money supply constant over time.

[edit] Macroeconomic policies

In order to try to avoid major economic shocks, such as The Great Depression, governments make adjustments through policy changes which they hope will succeed in stabilizing the economy. Governments believe that the success of these adjustments is necessary to maintain stability and continue growth. This economic management is achieved through two types of strategies:

* Fiscal policy

Fiscal policy is the means by which a government adjusts its levels of spending in order to monitor and influence a nation's economy. It is the sister strategy to monetary policy with which a central bank influences a nation's money supply. These two policies are used in various combinations in an effort to direct a country's economic goals. Here we take a look at how fiscal policy works, how it must be monitored and how its implementation may affect different people in an economy. (For background on fiscal policies, see Formulating Monetary Policy.),

Before the Great Depression in the United States, the government's approach to the economy was laissez faire. But following the Second World War, it was determined that the government had to take a proactive role in the economy to regulate unemployment, business cycles, inflation and the cost of money. By using a mixture of both monetary and fiscal policies (depending on the political orientations and the philosophies of those in power at a particular time, one policy may dominate over another), governments are able to control economic phenomena.

How Fiscal Policy Works

Fiscal policy is based on the theories of British economist John Maynard Keynes. Also known as Keynesian economics, this theory basically states that governments can influence macroeconomic productivity levels by increasing or decreasing tax levels and public spending. This influence, in turn, curbs inflation (generally considered to be healthy when at a level between 2-3%), increases employment and maintains a healthy value of money. (To read more on this subject, see Can Keynesian Economics Reduce Boom-Bust Cycles? and How Influential Economists Changed Our History.)

Balancing Act

The idea, however, is to find a balance in exercising these influences. For example, stimulating a stagnant economy runs the risk of rising inflation. This is because an increase in the supply of money followed by an increase in consumer demand can result in a decrease in the value of money - meaning that it will take more money to buy something that has not changed in value.

Let's say that an economy has slowed down. Unemployment levels are up, consumer spending is down and businesses are not making any money. A government thus decides to fuel the economy's engine by decreasing taxation, giving consumers more spending money while increasing government spending in the form of buying services from the market (such as building roads or schools). By paying for such services, the government creates jobs and wages that are in turn pumped into the economy. Pumping money into the economy is also known as "pump priming". In the meantime, overall unemployment levels will fall. (To learn more about inflation and employment, see Surveying The Employment Report and The Importance Of Inflation And GDP.)

With more money in the economy and less taxes to pay, consumer demand for goods and services increases. This in turn rekindles businesses and turns the cycle around from stagnant to active.

If, however, there are no reins on this process, the increase in economic productivity can cross over a very fine line and lead to too much money in the market. This excess in supply decreases the value of money, while pushing up prices (because of the increase in demand for consumer products). Hence, inflation occurs.

For this reason, fine tuning the economy through fiscal policy alone can be a difficult, if not improbable, means to reach economic goals. If not closely monitored, the line between an economy that is productive and one that is infected by inflation can be easily blurred. (For more on economic cycles, see Understanding Cycles - The Key To Market Timing and How Much Influence Does The Fed Have?)

And When The Economy Needs To Be Curbed…

When inflation is too strong, the economy may need a slow down. In such a situation, a government can use fiscal policy to increase taxes in order to suck money out of the economy. Fiscal policy could also dictate a decrease in government spending and thereby decrease the money in circulation. Of course, the possible negative effects of such a policy in the long run could be a sluggish economy and high unemployment levels. Nonetheless, the process continues as the government uses its fiscal policy to fine tune spending and taxation levels, with the goal of evening out the business cycles.

Who Does Fiscal Policy Affect?

Unfortunately, the effects of any fiscal policy are not the same on everyone. Depending on the political orientations and goals of the policymakers, a tax cut could affect only the middle class, which is typically the largest economic group. In times of economic decline and rising taxation, it is this same group that may have to pay more taxes than the wealthier upper class.

Similarly, when a government decides to adjust its spending, its policy may affect only a specific group of people. A decision to build a new bridge, for example, will give work and more income to hundreds of construction workers. A decision to spend money on building a new space shuttle, on the other hand, benefits only a small, specialized pool of experts, which would not do much to increase aggregate employment levels.

Conclusion

One of the biggest obstacles facing policymakers is deciding how much involvement the government should have in the economy. Indeed, there have been various degrees of interference by the government over the years. But for the most part, it is accepted that a degree of government involvement is necessary to sustain a vibrant economy, on which the economic well being of the population depends.

Evaluation / Criticism of Fiscal Policy

1. Disincentives of Tax Cuts.

Increasing Taxes to reduce AD may cause disincentives to work, if this occurs there will be a fall in productivity and AS could fall. However higher taxes do not necessarily reduce incentives to work if the income effect dominates.

2. Side Effects on Public Spending.

Reduced govt spending to Increase AD could adversely effect public services such as public transport and education causing market failure and social inefficiency.

3. Poor Information

Fiscal policy will suffer if the govt has poor information. E.g. If the govt believes there is going to be a recession, they will increase AD, however if this forecast was wrong and the economy grew too fast, the govt action would cause inflation.

4. Time Lags

If the govt plans to increase spending this can take along time to filter into the economy and it may be too late.Spending plans are only set once a year. There is also a delay in implementing any changes to spending patterns.

5. Budget Deficit

Expansionary fiscal policy (cutting taxes and increasing G) will cause an increase in the budget deficit which has many adverse effects.Higher budget deficit will require higher taxes in the future and may cause crowding out (see below

6. Other Componenets of AD.

If the governmentt uses fiscal policy its effectiveness will also depend upon the other components of AD, for example if consumer confidence is very low, reducing taxes may not lead to an increase in consumer spending.

7. Depends on Multiplier

And change in injections may be increased by the multiplier effect, therefore the size of the multiplier will be significant.

8. Crowding Out

Increased Govt spending (G) to increased AD may cause “Crowding out” Crowding out occurs when increased government spending results in decreasing the size of the private sector.

* For example if the govt increase spending it will have to increase taxes or sell bonds and borrow money, both method reduce private consumption or investment. If this occurs AD will not increase or increase only very slowly.

* Also Classical economists argue that the govt is more inefficient in spending money than the private sector therefore there will be a decline in economic welfare

* Increased government borrowing can also put upward pressure on interest rates. To borrow more money the interest rate on bonds may have to rise, causing slower growth in the rest of the economy.

9. Monetarist Critique.

Monetarists argue that in the LR AS is inelastic therefore an increase in AD will only cause inflation to increase



Monetary policy

Monetary policy is the process by which the government, central bank, or monetary authority of a country controls (i) the supply of money, (ii) availability of money, and (iii) cost of money or rate of interest, in order to attain a set of objectives oriented towards the growth and stability of the economy. Monetary theory provides insight into how to craft optimal monetary policy.

Monetary policy is referred to as either being an expansionary policy, or a contractionary policy, where an expansionary policy increases the total supply of money in the economy, and a contractionary policy decreases the total money supply. Expansionary policy is traditionally used to combat unemployment in a recession by lowering interest rates, while contractionary policy involves raising interest rates in order to combat inflation. Monetary policy is contrasted with fiscal policy, which refers to government borrowing, spending and taxation.

Overview

Monetary policy rests on the relationship between the rates of interest in an economy, that is the price at which money can be borrowed, and the total supply of money. Monetary policy uses a variety of tools to control one or both of these, to influence outcomes like economic growth, inflation, exchange rates with other currencies and unemployment. Where currency is under a monopoly of issuance, or where there is a regulated system of issuing currency through banks which are tied to a central bank, the monetary authority has the ability to alter the money supply and thus influence the interest rate (in order to achieve policy goals). The beginning of monetary policy as such comes from the late 19th century, where it was used to maintain the gold standard.

A policy is referred to as contractionary if it reduces the size of the money supply or raises the interest rate. An expansionary policy increases the size of the money supply, or decreases the interest rate. Furthermore, monetary policies are described as follows: accommodative, if the interest rate set by the central monetary authority is intended to create economic growth; neutral, if it is intended neither to create growth nor combat inflation; or tight if intended to reduce inflation.

There are several monetary policy tools available to achieve these ends: increasing interest rates by fiat; reducing the monetary base; and increasing reserve requirements. All have the effect of contracting the money supply; and, if reversed, expand the money supply. Since the 1970s, monetary policy has generally been formed separately from fiscal policy. Even prior to the 1970s, the Bretton Woods system still ensured that most nations would form the two policies separately.

Within almost all modern nations, special institutions (such as the Bank of England, the European Central Bank, Reserve Bank of India, the Federal Reserve System in the United States, the Bank of Japan, the Bank of Canada or the Reserve Bank of Australia) exist which have the task of executing the monetary policy and often independently of the executive. In general, these institutions are called central banks and often have other responsibilities such as supervising the smooth operation of the financial system.

The primary tool of monetary policy is open market operations. This entails managing the quantity of money in circulation through the buying and selling of various credit instruments, foreign currencies or commodities. All of these purchases or sales result in more or less base currency entering or leaving market circulation.

Usually, the short term goal of open market operations is to achieve a specific short term interest rate target. In other instances, monetary policy might instead entail the targeting of a specific exchange rate relative to some foreign currency or else relative to gold. For example, in the case of the USA the Federal Reserve targets the federal funds rate, the rate at which member banks lend to one another overnight; however, the monetary policy of China is to target the exchange rate between the Chinese renminbi and a basket of foreign currencies.

The other primary means of conducting monetary policy include: (i) Discount window lending (lender of last resort); (ii) Fractional deposit lending (changes in the reserve requirement); (iii) Moral suasion (cajoling certain market players to achieve specified outcomes); (iv) "Open mouth operations" (talking monetary policy with the market).

Monetary policy is the process by which the government, central bank, or monetary authority of a country controls (i) the supply of money, (ii) availability of money, and (iii) cost of money or rate of interest, in order to attain a set of objectives oriented towards the growth and stability of the economy. Monetary theory provides insight into how to craft optimal monetary policy.

Monetary policy rests on the relationship between the rates of interest in an economy, that is the price at which money can be borrowed, and the total supply of money. Monetary policy uses a variety of tools to control one or both of these, to influence outcomes like economic growth, inflation, exchange rates with other currencies and unemployment. Where currency is under a monopoly of issuance, or where there is a regulated system of issuing currency through banks which are tied to a central bank, the monetary authority has the ability to alter the money supply and thus influence the interest rate (in order to achieve policy goals). The beginning of monetary policy as such comes from the late 19th century, where it was used to maintain the gold standard. A policy is referred to as contractionary if it reduces the size of the money supply or raises the interest rate. An expansionary policy increases the size of the money supply, or decreases the interest rate. Furthermore, monetary policies are described as follows: accommodative, if the interest rate set by the central monetary authority is intended to create economic growth; neutral, if it is intended neither to create growth nor combat inflation; or tight if intended to reduce inflation.

It is important for policymakers to make credible announcements and degrade interest rates as they are non-important and irrelevant in regarding to monetary policies. If private agents (consumers and firms) believe that policymakers are committed to lowering inflation, they will anticipate future prices to be lower than otherwise (how those expectations are formed is an entirely different matter; compare for instance rational expectations with adaptive expectations). If an employee expects prices to be high in the future, he or she will draw up a wage contract with a high wage to match these prices. Hence, the expectation of lower wages is reflected in wage-setting behavior between employees and employers (lower wages since prices are expected to be lower) and since wages are in fact lower there is no demand pull inflation because employees are receiving a smaller wage and there is no cost push inflation because employers are paying out less in wages.

In order to achieve this low level of inflation, policymakers must have credible announcements; that is, private agents must believe that these announcements will reflect actual future policy. If an announcement about low-level inflation targets is made but not believed by private agents, wage-setting will anticipate high-level inflation and so wages will be higher and inflation will rise. A high wage will increase a consumer's demand (demand pull inflation) and a firm's costs (cost push inflation), so inflation rises. Hence, if a policymaker's announcements regarding monetary policy are not credible, policy will not have the desired effect.

If policymakers believe that private agents anticipate low inflation, they have an incentive to adopt an expansionist monetary policy (where the marginal benefit of increasing economic output outweighs the marginal cost of inflation); however, assuming private agents have rational expectations, they know that policymakers have this incentive. Hence, private agents know that if they anticipate low inflation, an expansionist policy will be adopted that causes a rise in inflation. Consequently, (unless policymakers can make their announcement of low inflation credible), private agents expect high inflation. This anticipation is fulfilled through adaptive expectation (wage-setting behavior);so, there is higher inflation (without the benefit of increased output). Hence, unless credible announcements can be made, expansionary monetary policy will fail.

Announcements can be made credible in various ways. One is to establish an independent central bank with low inflation targets (but no output targets). Hence, private agents know that inflation will be low because it is set by an independent body. Central banks can be given incentives to meet their targets (for example, larger budgets, a wage bonus for the head of the bank) in order to increase their reputation and signal a strong commitment to a policy goal. Reputation is an important element in monetary policy implementation. But the idea of reputation should not be confused with commitment. While a central bank might have a favorable reputation due to good performance in conducting monetary policy, the same central bank might not have chosen any particular form of commitment (such as targeting a certain range for inflation). Reputation plays a crucial role in determining how much would markets believe the announcement of a particular commitment to a policy goal but both concepts should not be assimilated. Also, note that under rational expectations, it is not necessary for the policymaker to have established its reputation through past policy actions; as an example, the reputation of the head of the central bank might be derived entirely from his or her ideology, professional background, public statements, etc. In fact it has been argued (add citation to Kenneth Rogoff, 1985. "The Optimal Commitment to an Intermediate Monetary Target" in 'Quarterly Journal of Economics' #100, pp. 1169-1189) that in order to prevent some pathologies related to the time-inconsistency of monetary policy implementation (in particular excessive inflation), the head of a central bank should have a larger distaste for inflation than the rest of the economy on average. Hence the reputation of a particular central bank is not necessary tied to past performance, but rather to particular institutional arrangements that the markets can use to form inflation expectations.

Despite the frequent discussion of credibility as it relates to monetary policy, the exact meaning of credibility is rarely defined. Such lack of clarity can serve to lead policy away from what is believed to be the most beneficial. For example, capability to serve the public interest is one definition of credibility often associated with central banks. The reliability with which a central bank keeps its promises is also a common definition. While everyone most likely agrees a central bank should not lie to the public, wide disagreement exists on how a central bank can best serve the public interest. Therefore, lack of definition can lead people to believe they are supporting one particular policy of credibility when they are really supporting another.[3]

Monetary policy is primarily associated with interest rate and credit. For many centuries there were only two forms of monetary policy: (i) Decisions about coinage; (ii) Decisions to print paper money to create credit. Interest rates, while now thought of as part of monetary authority, were not generally coordinated with the other forms of monetary policy during this time. Monetary policy was seen as an executive decision, and was generally in the hands of the authority with seigniorage, or the power to coin. With the advent of larger trading networks came the ability to set the price between gold and silver, and the price of the local currency to foreign currencies. This official price could be enforced by law, even if it varied from the market price.

With the creation of the Bank of England in 1694, which acquired the responsibility to print notes and back them with gold, the idea of monetary policy as independent of executive action began to be established.[4] The goal of monetary policy was to maintain the value of the coinage, print notes which would trade at par to specie, and prevent coins from leaving circulation. The establishment of central banks by industrializing nations was associated then with the desire to maintain the nation's peg to the gold standard, and to trade in a narrow band with other gold-backed currencies. To accomplish this end, central banks as part of the gold standard began setting the interest rates that they charged, both their own borrowers, and other banks who required liquidity. The maintenance of a gold standard required almost monthly adjustments of interest rates.

During the 1870-1920 period the industrialized nations set up central banking systems, with one of the last being the Federal Reserve in 1913.[5] By this point the role of the central bank as the "lender of last resort" was understood. It was also increasingly understood that interest rates had an effect on the entire economy, in no small part because of the marginal revolution in economics, which focused on how many more, or how many fewer, people would make a decision based on a change in the economic trade-offs. It also became clear that there was a business cycle, and economic theory began understanding the relationship of interest rates to that cycle. (Nevertheless, steering a whole economy by influencing the interest rate has often been described as trying to steer an oil tanker with a canoe paddle.) Research by Cass Business School has also suggested that perhaps it is the central bank policies of expansionary and concretionary policies that are causing the economic cycle; evidence can be found by looking at the lack of cycles in economies before central banking policies existed.

Monetarist macroeconomists have sometimes advocated simply increasing the monetary supply at a low, constant rate, as the best way of maintaining low inflation and stable output growth.[6] However, when U.S. Federal Reserve Chairman Paul Volcker tried this policy, starting in October 1979, it was found to be impractical, because of the highly unstable relationship between monetary aggregates and other macroeconomic variables.[7] Even Milton Friedman acknowledged that money supply targeting was less successful than he had hoped, in an interview with the Financial Times on June 7, 2003.[8][9][10] Therefore, monetary decisions today take into account a wider range of factors, such as:

* short term interest rates;

* long term interest rates;

* velocity of money through the economy;

* exchange rates;

* credit quality;

* bonds and equities (corporate ownership and debt);

* government versus private sector spending/savings;

* international capital flows of money on large scales;

* financial derivatives such as options, swaps, futures contracts, etc.

A small but vocal group of people advocate for a return to the gold standard (the elimination of the dollar's fiat currency status and even of the Federal Reserve Bank). Their argument is basically that monetary policy is fraught with risk and these risks will result in drastic harm to the populace should monetary policy fail. Others see another problem with our current monetary policy. The problem for them is not that our money has nothing physical to define its value, but that fractional reserve lending of that money as a debt to the recipient, rather than a credit, causes all but a small proportion of society (including all governments) to be perpetually in debt.

In fact, many economists disagree with returning to a gold standard. They argue that doing so would drastically limit the money supply, and throw away 100 years of advancement in monetary policy. The sometimes complex financial transactions that make big business (especially international business) easier and safer would be much more difficult if not impossible. Moreover, shifting risk to different people/companies that specialize in monitoring and using risk can turn any financial risk into a known dollar amount and therefore make business predictable and more profitable for everyone involved.

The central bank influences interest rates by expanding or contracting the monetary base, which consists of currency in circulation and banks' reserves on deposit at the central bank. The primary way that the central bank can affect the monetary base is by open market operations or sales and purchases of second hand government debt, or by changing the reserve requirements. If the central bank wishes to lower interest rates, it purchases government debt, thereby increasing the amount of cash in circulation or crediting banks' reserve accounts. Alternatively, it can lower the interest rate on discounts or overdrafts (loans to banks secured by suitable collateral, specified by the central bank). If the interest rate on such transactions is sufficiently low, commercial banks can borrow from the central bank to meet reserve requirements and use the additional liquidity to expand their balance sheets, increasing the credit available to the economy. Lowering reserve requirements has a similar effect, freeing up funds for banks to increase loans or buy other profitable assets.

A central bank can only operate a truly independent monetary policy when the exchange rate is floating.[11] If the exchange rate is pegged or managed in any way, the central bank will have to purchase or sell foreign exchange. These transactions in foreign exchange will have an effect on the monetary base analogous to open market purchases and sales of government debt; if the central bank buys foreign exchange, the monetary base expands, and vice versa. But even in the case of a pure floating exchange rate, central banks and monetary authorities can at best "lean against the wind" in a world where capital is mobile.

Accordingly, the management of the exchange rate will influence domestic monetary conditions. In order to maintain its monetary policy target, the central bank will have to sterilize or offset its foreign exchange operations. For example, if a central bank buys foreign exchange (to counteract appreciation of the exchange rate), base money will increase. Therefore, to sterilize that increase, the central bank must also sell government debt to contract the monetary base by an equal amount. It follows that turbulent activity in foreign exchange markets can cause a central bank to lose control of domestic monetary policy when it is also managing the exchange rate.

In the 1980s, many economists began to believe that making a nation's central bank independent of the rest of executive government is the best way to ensure an optimal monetary policy, and those central banks which did not have independence began to gain it. This is to avoid overt manipulation of the tools of monetary policies to effect political goals, such as re-electing the current government. Independence typically means that the members of the committee which conducts monetary policy have long, fixed terms. Obviously, this is a somewhat limited independence.

In the 1990s, central banks began adopting formal, public inflation targets with the goal of making the outcomes, if not the process, of monetary policy more transparent. In other words, a central bank may have an inflation target of 2% for a given year, and if inflation turns out to be 5%, then the central bank will typically have to submit an explanation.

The Bank of England exemplifies both these trends. It became independent of government through the Bank of England Act 1998 and adopted an inflation target of 2.5% RPI (now 2% of CPI).

The debate rages on about whether monetary policy can smooth business cycles or not. A central conjecture of Keynesian economics is that the central bank can stimulate aggregate demand in the short run, because a significant number of prices in the economy are fixed in the short run and firms will produce as many goods and services as are demanded (in the long run, however, money is neutral, as in the neoclassical model). There is also the Austrian school of economics, which includes Friedrich von Hayek and Ludwig von Mises's arguments, but most economists fall into either the Keynesian or neoclassical camps on this issue.

Developing countries may have problems establishing an effective operating monetary policy. The primary difficulty is that few developing countries have deep markets in government debt. The matter is further complicated by the difficulties in forecasting money demand and fiscal pressure to levy the inflation tax by expanding the monetary base rapidly. In general, the central banks in many developing countries have poor records in managing monetary policy. This is often because the monetary authority in a developing country is not independent of government, so good monetary policy takes a backseat to the political desires of the government or are used to pursue other non-monetary goals. For this and other reasons, developing countries that want to establish credible monetary policy may institute a currency board or adopt dollarization. Such forms of monetary institutions thus essentially tie the hands of the government from interference and, it is hoped, that such policies will import the monetary policy of the anchor nation.

Recent attempts at liberalizing and reforming the financial markets (particularly the recapitalization of banks and other financial institutions in Nigeria and elsewhere) are gradually providing the latitude required in order to implement monetary policy frameworks by the relevant central banks.

In practice, all types of monetary policy involve modifying the amount of base currency (M0) in circulation. This process of changing the liquidity of base currency through the open sales and purchases of (government-issued) debt and credit instruments is called open market operations.

Constant market transactions by the monetary authority modify the supply of currency and this impacts other market variables such as short term interest rates and the exchange rate.

The distinction between the various types of monetary policy lies primarily with the set of instruments and target variables that are used by the monetary authority to achieve their goals.

Monetary Policy:

Target Market Variable: Long Term Objective:

Inflation Targeting Interest rate on overnight debt A given rate of change in the CPI

Price Level Targeting Interest rate on overnight debt A specific CPI number

Monetary Aggregates The growth in money supply A given rate of change in the CPI

Fixed Exchange Rate The spot price of the currency The spot price of the currency

Gold Standard The spot price of gold Low inflation as measured by the gold price

Mixed Policy Usually interest rates Usually unemployment + CPI change

The different types of policy are also called monetary regimes, in parallel to exchange rate regimes. A fixed exchange rate is also an exchange rate regime; The Gold standard results in a relatively fixed regime towards the currency of other countries on the gold standard and a floating regime towards those that are not. Targeting inflation, the price level or other monetary aggregates implies floating exchange rate unless the management of the relevant foreign currencies is tracking the exact same variables (such as a harmonized consumer price index).

Inflation targeting:

Under this policy approach the target is to keep inflation, under a particular definition such as Consumer Price Index, within a desired range.

The inflation target is achieved through periodic adjustments to the Central Bank interest rate target. The interest rate used is generally the interbank rate at which banks lend to each other overnight for cash flow purposes. Depending on the country this particular interest rate might be called the cash rate or something similar.

The interest rate target is maintained for a specific duration using open market operations. Typically the duration that the interest rate target is kept constant will vary between months and years. This interest rate target is usually reviewed on a monthly or quarterly basis by a policy committee.

Changes to the interest rate target are made in response to various market indicators in an attempt to forecast economic trends and in so doing keep the market on track towards achieving the defined inflation target. For example, one simple method of inflation targeting called the Taylor rule adjusts the interest rate in response to changes in the inflation rate and the output gap. The rule was proposed by John B. Taylor of Stanford University

The inflation targeting approach to monetary policy approach was pioneered in New Zealand. It is currently used in Australia, Canada, Chile, the Eurozone, New Zealand, Norway, Iceland, Philippines, Poland, Sweden, South Africa, Turkey, and the United Kingdom.

Price level targeting:

Price level targeting is similar to inflation targeting except that CPI growth in one year is offset in subsequent years such that over time the price level on aggregate does not move.

Something similar to price level targeting was tried by Sweden in the 1930s, and seems to have contributed to the relatively good performance of the Swedish economy during the Great Depression. As of 2004, no country operates monetary policy based on a price level target.

Monetary aggregates:

In the 1980s, several countries used an approach based on a constant growth in the money supply. This approach was refined to include different classes of money and credit (M0, M1 etc). In the USA this approach to monetary policy was discontinued with the selection of Alan Greenspan as Fed Chairman.

This approach is also sometimes called monetarism.

While most monetary policy focuses on a price signal of one form or another, this approach is focused on monetary quantities.

Fixed exchange rate:

This policy is based on maintaining a fixed exchange rate with a foreign currency. There are varying degrees of fixed exchange rates, which can be ranked in relation to how rigid the fixed exchange rate is with the anchor nation.

Under a system of fiat fixed rates, the local government or monetary authority declares a fixed exchange rate but does not actively buy or sell currency to maintain the rate. Instead, the rate is enforced by non-convertibility measures (e.g. capital controls, import/export licenses, etc.). In this case there is a black market exchange rate where the currency trades at its market/unofficial rate.

Under a system of fixed-convertibility, currency is bought and sold by the central bank or monetary authority on a daily basis to achieve the target exchange rate. This target rate may be a fixed level or a fixed band within which the exchange rate may fluctuate until the monetary authority intervenes to buy or sell as necessary to maintain the exchange rate within the band. (In this case, the fixed exchange rate with a fixed level can be seen as a special case of the fixed exchange rate with bands where the bands are set to zero.)

Under a system of fixed exchange rates maintained by a currency board every unit of local currency must be backed by a unit of foreign currency (correcting for the exchange rate). This ensures that the local monetary base does not inflate without being backed by hard currency and eliminates any worries about a run on the local currency by those wishing to convert the local currency to the hard (anchor) currency.

Under dollarization, foreign currency (usually the US dollar, hence the term "dollarization") is used freely as the medium of exchange either exclusively or in parallel with local currency. This outcome can come about because the local population has lost all faith in the local currency, or it may also be a policy of the government (usually to rein in inflation and import credible monetary policy).

These policies often abdicate monetary policy to the foreign monetary authority or government as monetary policy in the pegging nation must align with monetary policy in the anchor nation to maintain the exchange rate. The degree to which local monetary policy becomes dependent on the anchor nation depends on factors such as capital mobility, openness, credit channels and other economic factors.

Gold standard:

The gold standard is a system in which the price of the national currency as measured in units of gold bars and is kept constant by the daily buying and selling of base currency to other countries and nationals. (i.e. open market operations, cf. above). The selling of gold is very important for economic growth and stability.

The gold standard might be regarded as a special case of the "Fixed Exchange Rate" policy. And the gold price might be regarded as a special type of "Commodity Price Index".

Today this type of monetary policy is not used anywhere in the world,[citation needed] apart from Switzerland[citation needed] (one of the world's most stable economies),[citation needed] although a form of gold standard was used widely across the world prior to 1971. For details see the Bretton Woods system. Its major advantages were simplicity and transparency.

Policy of various nations:

* Australia - Inflation targeting

* Brazil - Inflation targeting

* Canada - Inflation targeting

* Chile - Inflation targeting

* China - Monetary Targeting and targets a currency basket

* Eurozone - Inflation Targeting

* Hong Kong - Currency board (fixed to US dollar)

* India - Inflation Targeting

* New Zealand - Inflation targeting

* Singapore - Exchange rate targeting

* South Africa - Inflation targeting

* Turkey - Inflation targeting

* United Kingdom[13] - Inflation Targeting, alongside secondary targets on 'output and employment'.

* United States[14] - Mixed policy (and since the 1980s it is well fitted/described by the "Taylor rule" which shows that the Fed funds rate responds to shocks in inflation and output)

Further information: Monetary policy of the USA

Monetary policy tools:

Monetary policy can be implemented by changing the size of the monetary base. This directly changes the total amount of money circulating in the economy. A central bank can use open market operations to change the monetary base. The central bank would buy/sell bonds in exchange for hard currency. When the central bank disburses/collects this hard currency payment, it alters the amount of currency in the economy, thus altering the monetary base.

Reserve requirements:

The monetary authority exerts regulatory control over banks. Monetary policy can be implemented by changing the proportion of total assets that banks must hold in reserve with the central bank. Banks only maintain a small portion of their assets as cash available for immediate withdrawal; the rest is invested in illiquid assets like mortgages and loans. By changing the proportion of total assets to be held as liquid cash, the Federal Reserve changes the availability of loanable funds. This acts as a change in the money supply. Banks typically do not change the reserve requirements often because it creates very volatile changes in the money supply due to the lending multiplier.

Discount window lending:

Many central banks or finance ministries have the authority to lend funds to financial institutions within their country. By calling in existing loans or extending new loans, the monetary authority can directly change the size of the money supply.

Interest rates:

The contraction of the monetary supply can be achieved indirectly by increasing the nominal interest rates. Monetary authorities in different nations have differing levels of control of economy-wide interest rates. In the United States, the Federal Reserve can set the discount rate, as well as achieve the desired Federal funds rate by open market operations. This rate has significant effect on other market interest rates, but there is no perfect relationship. In the United States open market operations are a relatively small part of the total volume in the bond market. One cannot set independent targets for both the monetary base and the interest rate because they are both modified by a single tool — open market operations; one must choose which one to control.

In other nations, the monetary authority may be able to mandate specific interest rates on loans, savings accounts or other financial assets. By raising the interest rate(s) under its control, a monetary authority can contract the money supply, because higher interest rates encourage savings and discourage borrowing. Both of these effects reduce the size of the money supply.

Currency board:

A currency board is a monetary arrangement which pegs the monetary base of a country to that of an anchor nation. As such, it essentially operates as a hard fixed exchange rate, whereby local currency in circulation is backed by foreign currency from the anchor nation at a fixed rate. Thus, to grow the local monetary base an equivalent amount of foreign currency must be held in reserves with the currency board. This limits the possibility for the local monetary authority to inflate or pursue other objectives. The principal rationales behind a currency board are three-fold:

1. To import monetary credibility of the anchor nation;

2. To maintain a fixed exchange rate with the anchor nation;

3. To establish credibility with the exchange rate (the currency board arrangement is the hardest form of fixed exchange rates outside of dollarization).

In theory, it is possible that a country may peg the local currency to more than one foreign currency; although, in practice this has never happened (and it would be a more complicated to run than a simple single-currency currency board). A gold standard is a special case of a currency board where the value of the national currency is linked to the value of gold instead of a foreign currency.

The currency board in question will no longer issue fiat money but instead will only issue a set number of units of local currency for each unit of foreign currency it has in its vault. The surplus on the balance of payments of that country is reflected by higher deposits local banks hold at the central bank as well as (initially) higher deposits of the (net) exporting firms at their local banks. The growth of the domestic money supply can now be coupled to the additional deposits of the banks at the central bank that equals additional hard foreign exchange reserves in the hands of the central bank. The virtue of this system is that questions of currency stability no longer apply. The drawbacks are that the country no longer has the ability to set monetary policy according to other domestic considerations, and that the fixed exchange rate will, to a large extent, also fix a country's terms of trade, irrespective of economic differences between it and its trading partners.

Hong Kong operates a currency board, as does Bulgaria. Estonia established a currency board pegged to the Deutschmark in 1992 after gaining independence, and this policy is seen as a mainstay of that country's subsequent economic success (see Economy of Estonia for a detailed description of the Estonian currency board). Argentina abandoned its currency board in January 2002 after a severe recession. This emphasized the fact that currency boards are not irrevocable, and hence may be abandoned in the face of speculation by foreign exchange traders. Following the signing of the Dayton Peace Agreement in 1995, Bosnia and Herzegovina established a currency board pegged to the Deutschmark (since 2002 replaced by the Euro).

Currency boards have advantages for small, open economies which would find independent monetary policy difficult to sustain. They can also form a credible commitment to low inflation..


What is Macroeconomics - Where to Go From Here?

Now you know what macroeconomics is, it is time to expand your knowledge of economics. Here are 6 more entry-level FAQs to get you started:


1. What is Money?

2. What is the Business Cycle?

3. What are Opportunity Costs?

4. What does Economic Efficiency mean?

5. What is the Current Account?






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