Economics A-Z terms beginning with G

G7, G8, G10, G21, G22, G26

I don't want to belong to any club that will accept me as a member, quipped Groucho Marx. But the world's politicians are desperate to join the economic clubs that are the Group of Seven (G7), G8, G10 and so on. Being a member shows that, economically speaking, your country matters. Alas, beyond making politicians feel good, there has not been much evidence in recent years that they do anything useful, apart from letting government officials and journalists talk to each other about economics and politics, usually in beautiful locations with lots of fine food and drink on hand.
In 1975, six countries, the world's leading capitalist countries, ranked by gdp, were represented in France at the first annual summit meeting: the United States, the UK, Germany, Japan and Italy, as well as the host country. The following year they were joined by Canada and, in 1977, by representatives of the european union, although the group continued to be known as the G7. At the 1989 summit, 15 developing countries were also represented, although this did not give birth to the G22, which was not set up until 1998 and swiftly grew into G26. At the 1991 G7 summit, a meeting was held with the Soviet Union, a practice that continued (with Russia) in later years. In 1998, although it was not one of the world's eight richest countries, Russia became a full member of the G8. Meetings of the IMF are attended by the GIO, which includes 11 countries--the original members of the G7 as well as representatives of Switzerland, Belgium, Sweden and the Netherlands. In 2003, 21 developing countries, representing half of the world's population and two-thirds of its farmers, formed the G21 to lobby for more free trade in [economics-term KEY-"AGRICULTURE"]agriculture[/economics-term].
Game theory

How to win at Twister? No, but maybe at monopoly. Game theory is a technique for analysing how people, firms and governments should behave in strategic situations (in which they must interact with each other), and in deciding what to do must take into account what others are likely to do and how others might respond to what they do. For instance, competition between two firms can be analysed as a game in which firms play to achieve a long-term competitive advantage (perhaps even a monopoly). The theory helps each firm to develop its optimal strategy for, say, pricing its products and deciding how much to produce; it can help the firm to anticipate in advance what its competitor will do and shows how best to respond if the competitor does something unexpected. It is particularly useful for understanding behaviour in monopolistic competition.
In game theory, which can be used to describe anything from wage negotiations to arms races, a dominant strategy is one that will deliver the best results for the player, regardless of what anybody else does. One finding of game theory is that there may be a large first-mover advantage for companies that beat their rivals into a new market or come up with an innovation. One special case identified by the theory is the zero-sum game, where players see that the total winnings are fixed; for some to do well, others must lose. Far better is the positive-sum game, in which competitive interaction has the potential to make all the players richer. Another problem analysed by game theorists is the prisoners' dilemma. (See also nash equilibrium.)
GATT

See general agreement on tariffs and trade and world trade organisation.
GDP

Gross domestic product, a measure of economic activity in a country. It is calculated by adding the total value of a country's annual output of goods and services. GDP = private consumption + investment + public spending + the change in inventories + (exports - imports). It is usually valued at market prices; by subtracting indirect tax and adding any government subsidy, however, GDP can be calculated at factor cost. This measure more accurately reveals the income paid to factors of production. Adding income earned by domestic residents from their investments abroad, and subtracting income paid from the country to investors abroad, gives the country's gross national product (GNP).
The effect of inflation can be eliminated by measuring GDP growth in constant real prices. However, some economists argue that hitting a nominal gdp target should be the main goal of macroeconomic policy. This is because it would remind policymakers to take into account the effect of their decisions on inflation, as well as on growth. GDP can be calculated in three ways. The income method adds the income of residents (individuals and firms) derived from the production of goods and services. The output method adds the value of output from the different sectors of the economy. The expenditure method totals spending on goods and services produced by residents, before allowing for depreciation and capital consumption. As one person's output is another person's income, which in turn becomes expenditure, these three measures ought to be identical. They rarely are because of statistical imperfections. Furthermore, the output and income measures exclude unreported economic activity that takes place in the black economy but that may be captured by the expenditure measure.
GDP is disliked as an objective of economic policy by some because it is not a perfect measure of welfare. It does not include aspects of the good life such as some leisure activities. Nor does it include economically valuable activities that are not paid for, such as parents teaching their children to read. But it does include some things that lower the quality of life, such as activities that damage the environment.
Gearing

A company's debt expressed as a percentage of its equity; also known as leverage. (See also capital structure and leveraged buy-out.)
General Agreement on Tariffs and Trade

Or GATT, the vehicle for promoting international free trade, through a series of rounds of negotiations between the governments of trading countries. The first GATT round began in 1945. The last led to the establishment of the world trade organisation in 1995.
General equilibrium

Economic perfection. This is when demand and supply are in balance (the market is in equilibrium) for each and every good and service in the economy. Nobody thinks that real-world economies can ever be that perfect; at best there is "partial equilibrium". But most economists think that general equilibrium is something worth aspiring to.
Generational accounting

A relatively new way of analysing fiscal policy by identifying the financial costs and benefits of government policies to people of different ages, now living or yet to be born. Fiscal policy can distribute resources between different generations, sometimes deliberately and often inadvertently. At any moment in time, one generation may be in work and paying taxes that support other generations (those at school or retired) that are not working. Over its lifetime, one generation's mix of taxes paid and benefits received may differ sharply from that of another generation. Politicians are often tempted to ignore the needs of future generations (who, clearly, cannot vote at the time) in order to win the support of current generations, for instance by borrowing heavily to fund current spending. More fundamentally, because it incorporates all the tax and spending, current and future, to which a government is committed, generational accounting is a much better guide to whether fiscal policy is sustainable than measures such as the budget deficit, which looks only at taxes and spending in the current year.
Giffen goods

Named after Robert Giffen (1837-1910), a good for which demand increases as its price rises. But such goods may not exist in the real world.
Gilts

Shorthand for gilt-edged securities, meaning a safe bet, at least as far as receiving interest and avoiding default goes. The price of gilts can vary considerably over time, however, creating a degree of risk for investors. Usually the term is applied only to government bonds.
Gini coefficient

An inequality indicator. The Gini coefficient measures the inequality of income distribution within a country. It varies from zero, which indicates perfect equality, with every household earning exactly the same, to one, which implies absolute inequality, with a single household earning a country's entire income. Latin America is the world's most unequal region, with a Gini coefficient of around 0.5; in rich countries the figure is closer to 0.3.
Global public goods

Public goods that cannot be provided by one country acting alone but only by the joint efforts of many (strictly, all) countries. Some economists, along with global institutions such as the UN, reckon that such goods include international law and law enforcement, a stable global financial system, an open trading system, health, peace and enviromental sustainability.
Globalisation

A buzz word that refers to the trend for people, firms and governments around the world to become increasingly dependent on and integrated with each other. This can be a source of tremendous opportunity, as new markets, workers, business partners, goods and services and jobs become available, but also of competitive threat, which may undermine economic activities that were viable before globalisation.
The term first surfaced during the 1980s to characterise huge changes that were taking place in the international economy, notably the growth in international trade and in flows of capital around the world. Globalisation has also been used to describe growing income inequality between the world's rich and poor; the growing power of multinational companies relative to national government; and the spread of capitalism into former communist countries. Usually, the term is synonymous with international integration, the spread of free markets and policies of liberalisation and free trade. The process is not the result simply of economic forces. The decisions of policymakers have also played an important part, although not all governments have embraced the change warmly.
The driving force of globalisation has been multinational companies, which since the 1970s have constantly, and often successfully, lobbied governments to make it easier for them to put their skills and capital to work in previously protected national markets. Firms enjoying some national protection, and their (often unionised) workers, have been some of the main opponents of globalisation, along with advocates of fair trade.
Despite all the talk of globalisation during the 1990s, in some respects the world economy was more integrated in the late 19th century. The labour market was certainly more global. For example, the flow of people out of Europe, 300,000 people a year in the mid-19th century, reached 1m a year after 1900. Now governments are much fussier about immigration, and people are no longer free to migrate as they wish. As for capital markets, only in the 1990s did international capital flows, relative to the size of the world economy, recover to the levels of the few decades before the first world war.
This early globalised economy did not last for long, however. Between the two world wars, the flows of trade, capital and people collapsed to a trickle. Even before the first world war, governments started to put up the shutters against migrants and imports. Could such a backlash against globalisation happen again?
gni

Short for gross national income, a term now used instead of gnp in national accounts.
GNP

Short for gross national product, another measure of a country's economic performance. It is calculated by adding to gdp the income earned by residents from investments abroad, less the corresponding income sent home by foreigners who are living in the country.
Gold

For much of human history gold has been an important ingredient of economic activity. But its importance declined during the 20th century and may continue to shrink in future. The gold standard, which fixed exchange rates to the value of gold during the 19th and early 20th centuries, has been long abandoned. central banks, which in 2000 still owned 30,000 tonnes, over one-quarter of all the gold ever mined, no longer feel the need to have large reserves of the metal to support the value of their currency. It does not pay them any interest, though they may earn a little by lending it to bullion dealers. So they have started to sell.
Governments and investors have traditionally held gold as a hedge against inflation and to provide security at times of international crisis. But its role as a store of value has been tarnished. During the 1980s and 1990s, the value of gold generally failed to keep pace with inflation. The liquidity of gold is also less than that of a foreign currency so it cannot as easily be used for foreign exchange intervention in defence of a currency under attack. In short, gold is no longer a monetary asset. It has become just another commodity, although so-called gold-bugs still believe that should inflation ever soar again, gold will once more become the thing to have.
Gold standard

A monetary system in which a country backs its currency with a reserve of gold, and allows currency holders to exchange their notes and coins for gold. For many years up to 1914, most of the world's leading currencies had their exchange rate determined by the gold standard. The economic disruption resulting from the first world war led the combatants to abandon the link to gold. The UK (with others) returned to the gold standard in 1925, before quitting it for good in 1931. The widespread use of the gold standard ended during 1930-33 as a result of global depression and large cuts in international lending. The United States left the gold standard in 1933 and partially returned to it in 1934. After the second world war, a limited form of gold standard continued but only directly applied to the dollar; other major currencies had their exchange rates fixed to the dollar under the bretton woods arrangements. The dollar was finally cut loose from the gold standard in 1971.
Golden rule

Over the economic cycle, a government should borrow only to invest and not to finance current spending. This rule is certainly a prudent approach to fiscal policy, provided that governments are honest in describing spending as investment, that they invest in appropriate things and do so efficiently, and that they are careful to avoid crowding out superior private investment. But there are other fiscal policy options that may make as much sense. See, for example, balanced budget.
Government

There are few more hotly debated topics in economics than what role the state should play in the economy. Plenty of economists provided intellectual support for state intervention during the era of big government, particularly from the 1930s to the 1980s. keynesians argued that the state should manage the amount of demand in the economy to maintain full employment. Others advocated a command economy, in which the government would decide price levels, oversee the allocation of scarce resources and run the most important parts of the economy (the "commanding heights") or, in communist countries, the entire economy. The role of the state increased at the expense of market forces. Economists provided plenty of examples of market failure that seemed to justify this.
Since the 1950s, there has been growing evidence that government intervention can also be flawed, and can often impose even greater costs on an economy than market failure. One reason is that when a government acts, it usually does so as a monopoly, with all the attendant economic inefficiencies this implies.
In practice, policies of Keynesian demand management often resulted in inflation, and thus lost much of their credibility. There was growing concern that public investment was crowding out superior private investment, and that other public spending on things such as health care, education and pensions was similarly discouraging private provision. Government management of commercial enterprises was often seen to be inefficient and, starting in the 1980s, nationalisation gave way to privatisation. Even when the state was not directly responsible for economic activity, but instead set the rules governing private behaviour, there was evidence of regulatory failure. High rates of taxation started to discourage people and companies from undertaking economic activities that would, without the tax, have been profitable; wealth creation suffered.
Most economists agree that there is a need for some government role in the economy. A market economy can function only if there is an adequate legal system, and, in particular, clearly defined, enforceable property rights. The legal system is probably an example of what economists call a public good (although the existence in many countries and industries of some self-regulation shows it is not always so).
Although politicians in many countries spent most of the period since 1980 talking about the need to reduce the role of the state in the economy, and in many cases introduced policies of privatisation, deregulation and liberalisation to help this happen, public spending has continued to increase as a share of gdp. Within the oecd, public spending accounted for a larger slice of GDP in 2002 than in 1990, which was in turn higher than in 1980. Indeed, it has risen during every decade since the start of the 20th century. One reason was that governments had to honour spending commitments on pensions and health care made by previous generations of politicians.
Government bonds

See bonds and gilts.
Government debt

See fiscal policy and national debt.
Government expenditure

Spending by national and local government and some government-backed institutions. See fiscal policy, golden rule and budget.
Government revenue

See taxation.
Greenspan, Alan

The most famous of all central bank bosses, so far. A former jazz musician turned economist, he became chairman of the board of governors of America's Federal Reserve in 1987, shortly before Wall Street crashed. In 2003, he was reappointed until 2005. He won admirers for delivering monetary policy that helped to bring down inflation and create the conditions for strong economic growth. Some people considered him the nearest thing capitalism had to God. In 1996, he famously wondered aloud whether rising share prices were the result of "irrational exuberance". Economists debate whether history will judge him a failure because he did not prevent the growth of a huge bubble in America's economy.
Gresham's law

Bad money drives out good. One of the oldest laws in economics, named after Sir Thomas Gresham, an adviser to Queen Elizabeth I of England. He observed that when a currency has been debased and a new one is introduced to replace it, the new one will be hoarded and effectively taken out of circulation, while the old one will continue to be used for transactions, to be got rid of as fast as possible.
Gross domestic product

See gdp.
Gross national product

See gnp.
Growth

What economic activity is all about, but how can it be made to happen? Economists have plenty of theories, but none of them has all the answers.
Adam smith attributed growth to the invisible hand, a view shared by most followers of classical economics. neo-classical economics had a different theory of growth, devised by Robert Solow during the 1950s. This argued that a sustained increase in investment increases an economy's growth rate only temporarily: the ratio of capital to labour goes up, the marginal product of capital declines and the economy moves back to a long-term growth path. output will then increase at the same rate as the growth in the workforce (quality-adjusted, in later versions) plus a factor to reflect improvements in productivity.
This theory predicts specific relationships among some basic economic statistics. Yet some of these predictions fail to fit the facts. For example, income disparities between countries are greater than the differences in their savings rates would suggest. Moreover, although the model says that economic growth ultimately depends on the rate of technological change, it fails to explain exactly what determines this rate. Technological change is treated as exogenous.
Some economists argued that doing this ignored the main engine of growth. They developed a new growth theory, in which improvements in productivity were endogenous, meaning that they were the result of things taking place within the economic model being used and not merely assumed to happen, as in the neo-classical models. Endogenous growth was due, in particular, to technological innovation and investments in human capital. In looking for explanations for differences in rates of growth, including between rich and developing countries, the new growth theory concentrates on what the incentives are in an economy to create additional human capital and to invent new products.
Factors determining these incentives include government policies. Countries with broadly free-market policies, in particular free trade and the maintenance of secure property rights, typically have higher growth rates. Open economies have grown much faster on average than closed economies. Higher public spending relative to gdp is generally associated with slower growth. Also bad for growth are high inflation and political instability.
As countries grew richer during the 20th century annual growth rates declined, as a result of diminishing returns to capital. By 1990, most developed countries reckoned to have long-term trend growth rates of 2-2.5% a year. However, during the 1990s, growth rates started to rise, especially in the United States. Some economists said this was the result of the birth of a new economy based on a revolution in productivity, largely because of rapid technological innovation but also (perhaps directly stemming from the spread of new technology) to increases in the value of human capital.

Essential Economics

Economics A-Z is adapted from "Essential Economics", by Matthew Bishop - Bloomberg Press; Economist Books.

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Economics A-Z terms beginning with G

G7, G8, G10, G21, G22, G26

Game theory

GATT

GDP

Gearing

General Agreement on Tariffs and Trade

General equilibrium

Generational accounting

Giffen goods

Gilts

Gini coefficient

Global public goods

Globalisation

gni

GNP

Gold

Gold standard

Golden rule

Government

Government bonds

Government debt

Government expenditure

Government revenue

Greenspan, Alan

Gresham's law

Gross domestic product

Gross national product

Growth

Essential Economics