When inflation grows, especially if inflation is not a problem, workers and businesses are generally better off than if inflation is not a problem and the economy is no different. Economists use many abbreviations. One of the most common of these indicators is GDP, which stands for gross domestic product. It has become widely used as a reference point for the health of national and global economies. When GDP grows, especially if inflation is not a problem, workers and businesses are generally better off than if this were not the case.
Measuring GDP GDP measures the monetary value of final goods and services—that is, those purchased by the end user—produced in a country in a given period of time (say a quarter or year). It counts all outputs generated within a country’s borders. GDP consists of goods and services produced for sale in the market and also includes some non-market production, such as defense or education services provided by the government. An alternative concept is gross national product, or GNP, which accounts for all the outputs of a country’s population. So, if a German-owned company has a factory in the United States, that factory’s production will be included in the US GDP, but in the German GNP
Not all productive activities are included in GDP (for example, unpaid labor (such as work done at home or by volunteers) and black market activities are not included because they are difficult to accurately measure and evaluate. This means that he would not contribute to the GDP if he baked the same loaf for his family, despite counting the ingredients he purchased.
GDP in three different ways
The GDP does not take into account the “depreciation” incurred by the machinery, buildings, etc. (so-called capital stock) used in producing the output. If this depletion of the capital stock, called depreciation, is subtracted from the GDP, we get Net Domestic Product. GDP can be viewed in three different ways: The production approach collects “value added” at each stage of production, where value added is defined as total sales minus the value of intermediate inputs in the production process. For example, it would be Flour is an intermediate input and bread is the final product; or the architect’s services will be an intermediate input and construction is the final product.
The expenditure approach collects the value of purchases made by end users – for example, household consumption of food, television sets and medical services; Investments in machinery by companies; Purchases of goods and services by the government and foreigners. The income method combines income generated by production – for example, compensation received by employees and companies’ operating surplus (roughly sales minus costs). A country’s GDP is usually calculated by the national statistical agency, which collects information from a large number of sources.
However, when making the calculations, most countries follow established international standards. The international standard for measuring GDP is contained in the 1993 System of National Accounts, compiled by the International Monetary Fund, the European Commission, the OECD, the United Nations, and the World Bank. We understand what GDP cannot tell us. GDP is not a measure of a country’s general standard of living or well-being although changes in the output of goods and services per person (GDP per capita).
Real GDP
One of the things people want to know about an economy is whether its total production of goods and services is growing or shrinking. But because GDP is collected at current or nominal prices, one cannot compare two periods without making adjustments for inflation. To determine “real” GDP, its nominal value must be adjusted to take into account price changes so that we can know whether The value of output has risen because more is produced or simply because prices have risen. A statistical tool called the price deflator is used to adjust GDP from nominal to constant prices.
GDP is important because it gives information about the size of the economy and how the economy is performing. The real GDP growth rate is often used as an indicator of the overall health of the economy. Generally, an increase in real GDP is interpreted as a sign that the economy is in good shape. When real GDP grows strongly, employment is likely to increase as companies hire more workers for their factories and people keep more money in their pockets.
When GDP shrinks, as happened in many countries during the recent global economic crisis, employment typically declines. In some cases, GDP may be growing, but not fast enough to create enough jobs for those looking for them. But real GDP growth moves in cycles over time. Economies sometimes go through periods of prosperity, and other times they go through periods of slow growth or even recession (with the last recession often defined as two consecutive quarters during which output declines). In the United States, for example, the United States experienced six recessions of varying duration and severity from 1950 to 2011.
Comparing the GDP of two countries
GDP is measured in the currency of the country in question. This adjustment is required when trying to compare the value of output in two countries that use different currencies. The usual method is to convert each country’s GDP value to US dollars and then compare them. Conversion to dollars can be done either using market exchange rates – those prevailing in the foreign exchange market – or purchasing power parity exchange rates. The purchasing power parity exchange rate is the rate at which one country’s currency must be converted into another country’s currency to buy the same amount of goods and services in each country.
There is a large gap between market exchange rates and PPP-based exchange rates in emerging market and developing countries. For most emerging market and developing countries, the ratio of market US dollar exchange rates to purchasing power parity is between 2 and 4. This is because non-tradable goods and services tend to be cheaper in low-income countries than in high-income countries – for example, a haircut in New York is more expensive than in Bishkek – even when the cost of making tradable goods, such as machinery, between the two countries is itself. For advanced economies, market exchange rates and purchasing power parity tend to be much closer. .
The IMF publishes a range of GDP data on its website and international institutions such as the IMF also calculate global and regional real GDP growth. These give an idea of how fast or slow the global economy or economies in a particular region of the world are growing. The totals are generated as weighted averages of individual country’s GDP, with weights reflecting each country’s share of GDP in the group (with purchasing power parity exchange rates used to determine appropriate weights
