Gross domestic product (GDP) is a monetary measure of the market value of all the final goods and services produced in a period of time, often annually. GDP (nominal) per capita does not, however, reflect differences in the cost of living and the inflation rates of the countries; therefore using a basis of GDP per capita at purchasing power parity (PPP) is arguably more useful when comparing differences in living standards between nations.
The OECD defines GDP as "an aggregate measure of production equal to the sum of the gross values added of all resident and institutional units engaged in production (plus any taxes, and minus any subsidies, on products not included in the value of their outputs)." An IMF publication states that "GDP measures the monetary value of final goods and services—that are bought by the final user—produced in a country in a given period of time (say a quarter or a year)."
Total GDP can also be broken down into the contribution of each industry or sector of the economy. The ratio of GDP to the total population of the region is the per capita GDP and the same is called Mean Standard of Living. GDP is considered the "world's most powerful statistical indicator of national development and progress".
William Petty came up with a basic concept of GDP to attack landlords against unfair taxation during warfare between the Dutch and the English between 1654 and 1676  Charles Davenant developed the method further in 1695. The modern concept of GDP was first developed by Simon Kuznets for a US Congress report in 1934. In this report, Kuznets warned against its use as a measure of welfare (see below under limitations and criticisms). After the Bretton Woods conference in 1944, GDP became the main tool for measuring a country's economy. At that time gross national product (GNP) was the preferred estimate, which differed from GDP in that it measured production by a country's citizens at home and abroad rather than its 'resident institutional units' (see OECD definition above). The switch from GNP to GDP in the US was in 1991, trailing behind most other nations. The role that measurements of GDP played in World War II was crucial to the subsequent political acceptance of GDP values as indicators of national development and progress. A crucial role was played here by the US Department of Commerce under Milton Gilbert where ideas from Kuznets were embedded into governmental institutions.
The history of the concept of GDP should be distinguished from the history of changes in ways of estimating it. The value added by firms is relatively easy to calculate from their accounts, but the value added by the public sector, by financial industries, and by intangible asset creation is more complex. These activities are increasingly important in developed economies, and the international conventions governing their estimation and their inclusion or exclusion in GDP regularly change in an attempt to keep up with industrial advances. In the words of one academic economist "The actual number for GDP is therefore the product of a vast patchwork of statistics and a complicated set of processes carried out on the raw data to fit them to the conceptual framework."
GDP can be determined in three ways, all of which should, in principle, give the same result. They are the production (or output or value added) approach, the income approach, or the speculated expenditure approach.
The most direct of the three is the production approach, which sums the outputs of every class of enterprise to arrive at the total. The expenditure approach works on the principle that all of the product must be bought by somebody, therefore the value of the total product must be equal to people's total expenditures in buying things. The income approach works on the principle that the incomes of the productive factors ("producers," colloquially) must be equal to the value of their product, and determines GDP by finding the sum of all producers' incomes.
This approach mirrors the OECD definition given above.
Gross value added = gross value of output – value of intermediate consumption.
Value of output = value of the total sales of goods and services plus value of changes in the inventory.
The sum of the gross value added in the various economic activities is known as "GDP at factor cost".
GDP at factor cost plus indirect taxes less subsidies on products = "GDP at producer price".
For measuring output of domestic product, economic activities (i.e. industries) are classified into various sectors. After classifying economic activities, the output of each sector is calculated by any of the following two methods:
The value of output of all sectors is then added to get the gross value of output at factor cost. Subtracting each sector's intermediate consumption from gross output value gives the GVA (=GDP) at factor cost. Adding indirect tax minus subsidies to GVA (GDP) at factor cost gives the "GVA (GDP) at producer prices".
The second way of estimating GDP is to use "the sum of primary incomes distributed by resident producer units".
If GDP is calculated this way it is sometimes called gross domestic income (GDI), or GDP (I). GDI should provide the same amount as the expenditure method described later. By definition, GDI is equal to GDP. In practice, however, measurement errors will make the two figures slightly off when reported by national statistical agencies.
This method measures GDP by adding incomes that firms pay households for factors of production they hire - wages for labour, interest for capital, rent for land and profits for entrepreneurship.
The US "National Income and Expenditure Accounts" divide incomes into five categories:
These five income components sum to net domestic income at factor cost.
Two adjustments must be made to get GDP:
Total income can be subdivided according to various schemes, leading to various formulae for GDP measured by the income approach. A common one is:
The sum of COE, GOS and GMI is called total factor income; it is the income of all of the factors of production in society. It measures the value of GDP at factor (basic) prices. The difference between basic prices and final prices (those used in the expenditure calculation) is the total taxes and subsidies that the government has levied or paid on that production. So adding taxes less subsidies on production and imports converts GDP(I) at factor cost to GDP(I) at final prices.
Total factor income is also sometimes expressed as:
The third way to estimate GDP is to calculate the sum of the final uses of goods and services (all uses except intermediate consumption) measured in purchasers' prices.
Market goods which are produced are purchased by someone. In the case where a good is produced and unsold, the standard accounting convention is that the producer has bought the good from themselves. Therefore, measuring the total expenditure used to buy things is a way of measuring production. This is known as the expenditure method of calculating GDP.
GDP (Y) is the sum of consumption (C), investment (I), government spending (G) and net exports (X – M).
Here is a description of each GDP component:
Note that C, G, and I are expenditures on final goods and services; expenditures on intermediate goods and services do not count. (Intermediate goods and services are those used by businesses to produce other goods and services within the accounting year.)
According to the U.S. Bureau of Economic Analysis, which is responsible for calculating the national accounts in the United States, "In general, the source data for the expenditures components are considered more reliable than those for the income components [see income method, below]."
GDP can be contrasted with gross national product (GNP) or, as it is now known, gross national income (GNI). The difference is that GDP defines its scope according to location, while GNI defines its scope according to ownership. In a global context, world GDP and world GNI are, therefore, equivalent terms.
GDP is product produced within a country's borders; GNI is product produced by enterprises owned by a country's citizens. The two would be the same if all of the productive enterprises in a country were owned by its own citizens, and those citizens did not own productive enterprises in any other countries. In practice, however, foreign ownership makes GDP and GNI non-identical. Production within a country's borders, but by an enterprise owned by somebody outside the country, counts as part of its GDP but not its GNI; on the other hand, production by an enterprise located outside the country, but owned by one of its citizens, counts as part of its GNI but not its GDP.
For example, the GNI of the USA is the value of output produced by American-owned firms, regardless of where the firms are located. Similarly, if a country becomes increasingly in debt, and spends large amounts of income servicing this debt this will be reflected in a decreased GNI but not a decreased GDP. Similarly, if a country sells off its resources to entities outside their country this will also be reflected over time in decreased GNI, but not decreased GDP. This would make the use of GDP more attractive for politicians in countries with increasing national debt and decreasing assets.
Gross national income (GNI) equals GDP plus income receipts from the rest of the world minus income payments to the rest of the world.
In 1991, the United States switched from using GNP to using GDP as its primary measure of production. The relationship between United States GDP and GNP is shown in table 1.7.5 of the National Income and Product Accounts.
The international standard for measuring GDP is contained in the book System of National Accounts (1993), which was prepared by representatives of the International Monetary Fund, European Union, Organisation for Economic Co-operation and Development, United Nations and World Bank. The publication is normally referred to as SNA93 to distinguish it from the previous edition published in 1968 (called SNA68) 
SNA93 provides a set of rules and procedures for the measurement of national accounts. The standards are designed to be flexible, to allow for differences in local statistical needs and conditions.
Within each country GDP is normally measured by a national government statistical agency, as private sector organizations normally do not have access to the information required (especially information on expenditure and production by governments).
The raw GDP figure as given by the equations above is called the nominal, historical, or current, GDP. When one compares GDP figures from one year to another, it is desirable to compensate for changes in the value of money – for the effects of inflation or deflation. To make it more meaningful for year-to-year comparisons, it may be multiplied by the ratio between the value of money in the year the GDP was measured and the value of money in a base year.
For example, suppose a country's GDP in 1990 was $100 million and its GDP in 2000 was $300 million. Suppose also that inflation had halved the value of its currency over that period. To meaningfully compare its GDP in 2000 to its GDP in 1990, we could multiply the GDP in 2000 by one-half, to make it relative to 1990 as a base year. The result would be that the GDP in 2000 equals $300 million × one-half = $150 million, in 1990 monetary terms. We would see that the country's GDP had realistically increased 50 percent over that period, not 200 percent, as it might appear from the raw GDP data. The GDP adjusted for changes in money value in this way is called the real, or constant, GDP.
The factor used to convert GDP from current to constant values in this way is called the GDP deflator. Unlike consumer price index, which measures inflation or deflation in the price of household consumer goods, the GDP deflator measures changes in the prices of all domestically produced goods and services in an economy including investment goods and government services, as well as household consumption goods.
Constant-GDP figures allow us to calculate a GDP growth rate, which indicates how much a country's production has increased (or decreased, if the growth rate is negative) compared to the previous year.
Another thing that it may be desirable to account for is population growth. If a country's GDP doubled over a certain period, but its population tripled, the increase in GDP may not mean that the standard of living increased for the country's residents; the average person in the country is producing less than they were before. Per-capita GDP is a measure to account for population growth.
The level of GDP in countries may be compared by converting their value in national currency according to either the current currency exchange rate, or the purchasing power parity exchange rate.
The ranking of countries may differ significantly based on which method is used.
There is a clear pattern of the purchasing power parity method decreasing the disparity in GDP between high and low income (GDP) countries, as compared to the current exchange rate method. This finding is called the Penn effect.
For more information, see Measures of national income and output.
GDP per capita is often used as an indicator of living standards.
The major advantage of GDP per capita as an indicator of standard of living is that it is measured frequently, widely, and consistently. It is measured frequently in that most countries provide information on GDP on a quarterly basis, allowing trends to be seen quickly. It is measured widely in that some measure of GDP is available for almost every country in the world, allowing inter-country comparisons. It is measured consistently in that the technical definition of GDP is relatively consistent among countries.
GDP does not include several factors that influence the standard of living. In particular, it fails to account for:
It can be argued that GDP per capita as an indicator standard of living is correlated with these factors, capturing them indirectly. As a result, GDP per capita as a standard of living is a continued usage because most people have a fairly accurate idea of what it is and know it is tough to come up with quantitative measures for such constructs as happiness, quality of life, and well-being.
Simon Kuznets, the economist who developed the first comprehensive set of measures of national income, stated in his first report to the US Congress in 1934, in a section titled "Uses and Abuses of National Income Measurements":
The valuable capacity of the human mind to simplify a complex situation in a compact characterization becomes dangerous when not controlled in terms of definitely stated criteria. With quantitative measurements especially, the definiteness of the result suggests, often misleadingly, a precision and simplicity in the outlines of the object measured. Measurements of national income are subject to this type of illusion and resulting abuse, especially since they deal with matters that are the center of conflict of opposing social groups where the effectiveness of an argument is often contingent upon oversimplification. [...]
All these qualifications upon estimates of national income as an index of productivity are just as important when income measurements are interpreted from the point of view of economic welfare. But in the latter case additional difficulties will be suggested to anyone who wants to penetrate below the surface of total figures and market values. Economic welfare cannot be adequately measured unless the personal distribution of income is known. And no income measurement undertakes to estimate the reverse side of income, that is, the intensity and unpleasantness of effort going into the earning of income. The welfare of a nation can, therefore, scarcely be inferred from a measurement of national income as defined above.
In 1962, Kuznets stated:
Distinctions must be kept in mind between quantity and quality of growth, between costs and returns, and between the short and long run. Goals for more growth should specify more growth of what and for what.
Ever since the development of GDP, multiple observers have pointed out limitations of using GDP as the overarching measure of economic and social progress.
Although a high or rising level of GDP is often associated with increased economic and social progress within a country, a number of scholars have pointed out that this does not necessarily play out in many instances. For example, Jean Drèze and Amartya Sen have pointed out that an increase in GDP or in GDP growth does not necessarily lead to a higher standard of living, particularly in areas such as healthcare and education. Another important area that does not necessarily improve along with GDP is political liberty, which is most notable in China, where GDP growth is strong yet political liberties are heavily restricted.
GDP does not account for the distribution of income among the residents of a country, because GDP is merely an aggregate measure. An economy may be highly developed or growing rapidly, but also contain a wide gap between the rich and the poor in a society. These inequalities often occur on the lines of race, ethnicity, gender, religion, or other minority status within countries. This can lead to misleading characterizations of economic well-being if the income distribution is heavily skewed toward the high end, as the poorer residents will not directly benefit from the overall level of wealth and income generated in their country. Even GDP per capita measures may have the same downside if inequality is high. For example, South Africa during apartheid ranked high in terms of GDP per capita, but the benefits of this immense wealth and income were not shared equally among the country.
GDP does not take into account the value of household and other unpaid work. Some, including Martha Nussbaum, argue that this value should be included in measuring GDP, as household labor is largely a substitute for goods and services that would otherwise be purchased for value. Even under conservative estimates, the value of unpaid labor in Australia has been calculated to be over 50% of the country's GDP. A later study analyzed this value in other countries, with results ranging from a low of about 15% in Canada (using conservative estimates) to high of nearly 70% in the United Kingdom (using more liberal estimates). For the United States, the value was estimated to be between about 20% on the low end to nearly 50% on the high end, depending on the methodology being used. Because many public policies are shaped by GDP calculations and by the related field of national accounts, the non-inclusion of unpaid work in calculating GDP can create distortions in public policy, and some economists have advocated for changes in the way public policies are formed and implemented.
The UK's Natural Capital Committee highlighted the shortcomings of GDP in its advice to the UK Government in 2013, pointing out that GDP "focuses on flows, not stocks. As a result, an economy can run down its assets yet, at the same time, record high levels of GDP growth, until a point is reached where the depleted assets act as a check on future growth". They then went on to say that "it is apparent that the recorded GDP growth rate overstates the sustainable growth rate. Broader measures of wellbeing and wealth are needed for this and there is a danger that short-term decisions based solely on what is currently measured by national accounts may prove to be costly in the long-term".
It has been suggested that countries that have authoritarian governments, such as the People's Republic of China, and Russia, inflate their GDP figures.
In response to these and other limitations of using GDP, alternative approaches have emerged.
To convert GDP into GNI, it is necessary to add the income received by resident units from abroad and deduct the income created by production in the country but transferred to units residing abroad.
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In economics, the GDP deflator (implicit price deflator) is a measure of the level of prices of all new, domestically produced, final goods and services in an economy in a year. GDP stands for gross domestic product, the total monetary value of all final goods and services produced within the territory of a country over a particular period of time (quarterly or annually).
Like the consumer price index (CPI), the GDP deflator is a measure of price inflation/deflation with respect to a specific base year; the GDP deflator of the base year itself is equal to 100. Unlike the CPI, the GDP deflator is not based on a fixed basket of goods and services; the "basket" for the GDP deflator is allowed to change from year to year with people's consumption and investment patterns.Gross national income
The gross national income (GNI), previously known as gross national product (GNP), is the total domestic and foreign output claimed by residents of a country, consisting of gross domestic product (GDP), plus factor incomes earned by foreign residents, minus income earned in the domestic economy by nonresidents (Todaro & Smith, 2011: 44). Comparing GNI to GDP shows the degree to which a nation's GDP represents domestic or international activity. GNI has gradually replaced GNP in international statistics. While being conceptually identical, it is calculated differently. GNI is the basis of calculation of the largest part of contributions to the budget of the European Union. In February 2017, Ireland's GDP became so distorted from the base erosion and profit shifting ("BEPS") tax planning tools of U.S. multinationals, that the Central Bank of Ireland replaced Irish GDP with a new metric, Irish Modified GNI*. In 2017, Irish GDP was 162% of Irish Modified GNI*.Gross regional domestic product
Gross regional domestic product (GRDP) or gross domestic product of region (GDPR) is a statistic that measures the size of a region's economy. It is the aggregate of gross value added (GVA) of all resident producer units in the region, and analogous to national gross domestic product. The GRDP includes regional estimates on the three major sectors including their sub-sectors, namely:
Agriculture, fishery and forestry
Industry sector: Mining and quarrying, manufacturing, construction, electricity, and water
Service sector: Transport, communication, and storage, trade, finance, ownership of dwellings and real estate, private government services"The GRDP is usually presented in nominal and real terms. Nominal GRDP measures the value of the outputs of the economy at current prices. Real GRDP referred to as GRDP at constant prices, measures the value of an economy's output using the prices of a fixed base year. The real GRDP is useful in capturing real output growth since inflationary effects have been removed. It is, therefore, the most widely used measure of real income."Gross value added
In economics, gross value added (GVA) is the measure of the value of goods and services produced in an area, industry or sector of an economy. In national accounts GVA is output minus intermediate consumption; it is a balancing item of the national accounts' production account.List of Brazilian federative units by gross regional product
Brazil produced, in 1999, a gross domestic product (GDP) of R$44,403,000 million or US$2,223,737 million in nominal terms, ranking 7th worldwide, and Int$2,896,461 million in Purchasing Power Parity (PPP) terms, ranking 7th worldwide, according to the Brazilian Institute of Geography and Statistics (IBGE) and the International Monetary Fund (IMF). In that year, the Brazilian economy grew 1.0% in real terms according to revised figures of the IBGE. The per capita accounts of the GDP were R$22,813.47 or US$11.521,95 in nominal terms, and Int$14,537.40 in PPP terms. The Brazilian population, in 2012, was 193,300,291, ranking 5th worldwide and totaling 2.84% of the world's population.
Brazil is formed by the union of 27 federative units—26 states and the Federal District, which contains the capital city, Brasília. Of these, seven states; São Paulo, Rio de Janeiro, Minas Gerais, Rio Grande do Sul, Paraná, Bahia and Santa Catarina; with the Federal District, concentrate almost 80% of the national economy. São Paulo is the richest and most populous state of Brazil, ranking 16th and 27th worldwide, respectively; Rio de Janeiro is the second richest and the third most populous state, ranking 65th and 59th worldwide; and Minas Gerais is the third richest and the second most populous state, ranking 80th and 55th worldwide. Piauí has the lowest GRP per capita at the same time that the Federal District has the highest. Amapá, Acre and Roraima are the poorest states in the country with 0.59% of the national GDP.List of Canadian provinces and territories by gross domestic product
This article lists Canadian provinces and territories by gross domestic product (GDP).
While Canada’s ten provinces and three territories exhibit high per capita GDPs, there is wide variation among them. Ontario, the country's most populous province, is a manufacturing and trade locus with extensive linkages to the northeastern and midwestern United States. The economies of Alberta, Saskatchewan, Newfoundland and the territories rely heavily on natural resources and produce the highest per capita GDP values in the country. On the other hand, Manitoba, Quebec and The Maritimes have the country's lowest per capita GDP values.
In the face of these long-term regional disparities, the Government of Canada redistributes some of its revenues through unconditional equalization payments and finances the delivery of comparable levels of government services through the Canada Health Transfer and the Canada Social Transfer.List of Malaysian states by GDP
This is a list of Malaysian states and federal territories sorted by their gross domestic product.As of 11 September 2017, 1 Malaysian Ringgit (RM) is equivalent to 0.24 US Dollar or 0.20 Euros.List of Pakistani provinces by gross domestic product
This is a list of provinces of Pakistan by their gross state product (GSP) (the value of the total economy, and goods and services produced in the respective province) in nominal terms. GSP is the provincial-level counterpart of the national gross domestic product (GDP), the most comprehensive measure of a country's economic activity.List of South African provinces by gross domestic product
This article lists the provinces of South Africa by their gross regional domestic product (GDP).List of South African provinces by gross domestic product per capita
This article lists the provinces of South Africa by their gross regional domestic product (GDP) per capita.List of U.S. states and territories by GDP
This is a list of U.S. states, federal district, and territories sorted by their gross domestic product (GDP). The United States Bureau of Economic Analysis (BEA) defines GDP by state as "the sum of value added from all industries in the state." Data for the territories is from Worldbank.org.List of countries by GDP (PPP)
This article includes a list of countries by their forecasted estimated gross domestic product based on purchasing power parity, abbreviated GDP (PPP). Countries are sorted by GDP PPP forecast estimates from financial and statistical institutions in the limited period January–April 2017, which are calculated at market or government official exchange rates. The data given on this page are based on the international dollar, a standardized unit used by economists. Certain regions that are not widely considered countries such as the European Union and Hong Kong also show up in the list if they are distinct jurisdiction areas or economic entities.
GDP comparisons using PPP are arguably more useful than those using nominal GDP when assessing a nation's domestic market because PPP takes into account the relative cost of local goods, services and inflation rates of the country, rather than using international market exchange rates which may distort the real differences in per capita income. It is however limited when measuring financial flows between countries and when comparing the quality of same goods among countries. PPP is often used to gauge global poverty thresholds and is used by the United Nations in constructing the human development index. These surveys such as the International Comparison Program include both tradable and non-tradable goods in an attempt to estimate a representative basket of all goods.The first table includes estimates for the year 2017 for all current 191 International Monetary Fund (IMF) members as well as Hong Kong and Taiwan. Data are in millions of international dollars; they were calculated by the IMF. Figures were published in April 2018. The second table includes data, mostly for the year 2015, for 180 of the 193 current United Nations member states as well as Hong Kong and Macau (the two Chinese Special Administrative Regions). Data are in millions of international dollars; they were compiled by the World Bank. The third table is a tabulation of the CIA World Factbook GDP (PPP) data update of 2017. The data for GDP at purchasing power parity has also been rebased using the new International Comparison Program price surveys and extrapolated to 2007. Non-sovereign entities (the world, continents, and some dependent territories) and states with limited international recognition (such as Kosovo, the State of Palestine and Taiwan) are included in the list in cases in which they appear in the sources. These economies are not ranked in the charts here, but are listed in sequence by GDP for comparison. In addition, non-sovereign entities are marked in italics.List of countries by GDP (nominal) per capita
This page lists the countries of the world sorted by their gross domestic product per capita at nominal values. This is the value of all final goods and services produced within a nation in a given year, converted at market exchange rates to current U.S. dollars, divided by the average population for the same year.
The figures presented here do not take into account differences in the cost of living in different countries, and the results vary greatly from one year to another based on fluctuations in the exchange rates of the country's currency. Such fluctuations change a country's ranking from one year to the next, even though they often make little or no difference to the standard of living of its population.
Therefore, these figures should be used with caution. GDP per capita is often considered an indicator of a country's standard of living; although this is problematic because GDP per capita is not a measure of personal income.
Comparisons of national income are also frequently made on the basis of purchasing power parity (PPP), to adjust for differences in the cost of living in different countries. (See List of countries by GDP (PPP) per capita.) PPP largely removes the exchange rate problem but not others; it does not reflect the value of economic output in international trade, and it also requires more estimation than GDP per capita. On the whole, PPP per capita figures are more narrowly spread than nominal GDP per capita figures.
Non-sovereign entities (the world, continents, and some dependent territories) and states with limited international recognition (such as Kosovo, the State of Palestine and Taiwan) are included in the list in cases in which they appear in the sources. These economies are not ranked in the charts here, but are listed in sequence by GDP for comparison. In addition, non-sovereign entities are marked in italics.
Note that the Irish GDP data below is subject to material distortion by the tax planning activities of foreign multinationals in Ireland. 2015 Irish GDP is over 150% of 2015 Irish GNI. To address this, in 2017 the Central Bank of Ireland created "modified GNI" (or GNI*) as a more appropriate statistic, and the OECD and IMF have adopted it for Ireland. 2015 Irish GDP is 143% of 2015 Irish GNI*.
All data are in current United States dollars. Historical data can be found here.List of countries by total health expenditure per capita
This article includes 3 lists of countries of the world and their total expenditure on health per capita. Total expenditure includes both public and private expenditures.
The first table and bar chart lists member countries of the Organisation for Economic Co-operation and Development (OECD). With each country's total expenditure on health per capita in PPP U.S. dollars.
The next 2 tables use data from the World Health Organization (WHO). One table uses U.S. dollars per capita. The other table uses 2011 PPP international US dollars (inflation-adjusted to 2011 dollars).
The chart to the right measures the total cost of health care (public and private expenditures) as a percent of GDP (gross domestic product) for a few nations. GDP is a measure of the total economy of a nation.Lists of countries by GDP
List of countries by GDP (Gross domestic product) may refer to:
List of countries by GDP (nominal), a list using the current exchange rates for national currencies
List of countries by GDP (nominal) per capita
List of countries by GDP (PPP), a list using the concept of purchasing power parity to derive GDP estimates
List of countries by GDP (PPP) per capita
List of countries by GDP (PPP) per hour worked
List of countries by GDP (PPP) per person employed
List of countries by real GDP growth rateLists of countries by GDP per capita
There are several ways of listing countries according to their per capita GDP. These include:
List of countries by GDP (nominal) per capita
List of countries by GDP (PPP) per capitaMeasures of national income and output
A variety of measures of national income and output are used in economics to estimate total economic activity in a country or region, including gross domestic product (GDP), gross national product (GNP), net national income (NNI), and adjusted national income also called as NNI at factor cost (NNI* adjusted for natural resource depletion). All are specially concerned with counting the total amount of goods and services produced within the economy and by different sectors. The boundary is usually defined by geography or citizenship, and it is also defined as the total income of the nation and also restrict the goods and services that are counted. For instance, some measures count only goods & services that are exchanged for money, excluding bartered goods, while other measures may attempt to include bartered goods by imputing monetary values to them.Per capita income
Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. It is calculated by dividing the area's total income by its total population.Real gross domestic product
Real gross domestic product (real GDP for short) is a macroeconomic measure of the value of economic output adjusted for price changes (i.e. inflation or deflation). This adjustment transforms the money-value measure, nominal GDP, into an index for quantity of total output. Although GDP is total output, it is primarily useful because it closely approximates the total spending: the sum of consumer spending, investment made by industry, excess of exports over imports, and government spending. Due to inflation, GDP increases and does not actually reflect the true growth in an economy. That is why the GDP must be divided by the inflation rate (raised to the power of units of time in which the rate is measured) to get the growth of the real GDP. Different organizations use different types of 'Real GDP' measures, for example the United Nations UNCTAD uses 2005 Constant prices and exchange rates while the FRED uses 2009 constant prices and exchange rates, and recently the World Bank switched from 2005 to 2010 constant prices and exchange rates.
|Purchasing power parity (PPP)|
|Gross national income (GNI)|
|Countries by region|
Economic classification of countries
|Gross domestic product (GDP)|
|Gross national income (GNI)|
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investment position (NIIP)