< p > a href= "http://sjfzxm.com/news/index_cj.as" > gross domestic product < /a > (Gross Domestic Product, referred to as GDP) refers to the value of all final products and labor services produced in a country or region in a certain period of time (a quarter or a year), and is often recognized as the best indicator to measure the state of the country's economy.

It can not only reflect the economic performance of a country, but also reflect the country's national strength and wealth.

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< p > < strong > expressive form < /strong > < /p >.

< p > value form, income form and product form.

From the perspective of value form, it is the difference between the value of all goods and services produced by all the permanent units over a certain period of time over the total value of the goods and services of all non fixed assets invested in the same period, that is, the sum of the value added of all the resident units; from the form of revenue, it is the sum of the initial distribution income created by all the regular units in a certain period of time and allocated to the resident units and non resident units; from the product form, it is the final use of goods and services minus a href= "http://sjfzxm.com/news/index_c.asp" > Import < /a > goods and services.

In actual accounting, the three forms of gross domestic product (GDP) are three methods of calculation, namely, production, income and expenditure. The three methods reflect gross domestic product and its components from different aspects respectively.

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< p > in economics, GDP and GNI (gross national income, gross national Income) are commonly used to measure the comprehensive level of economic development in the country or region.

This is also a measure commonly used by various countries and regions.

GDP is the most important economic statistic in the macro economy, because it is considered to be the most important index to measure the development of the national economy.

GDP reflects the total value added of various sectors of the national economy.

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< p > < strong > conceptual analysis < /strong > < /p >

< p > first, GDP is measured by the final product, that is, the final sale value of the final product in that period.

Generally, products can be divided into intermediate products and final products according to the actual uses of the products.

The so-called end product refers to the goods and services that can be directly consumed or used by people in a certain period of time.

This part of the product has reached the final stage of production, and can no longer be used as raw materials or semi-finished products in the production process of other products and services, such as consumer goods, capital goods and so on.

Intermediate products refer to goods or services that are processed or resold for the production and use of other products, such as raw materials and fuels.

GDP must be calculated according to the final products of the current period, and the intermediate products can not be counted, otherwise it will cause repeated calculations.

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< p > Second, gross domestic product is a concept of < a href= "http://sjfzxm.com/news/index_s.asp" > market < /a > value.

The market value of various final products is the value of exchange in the market, which is measured by money and embodied through market exchange.

The market value of a product is obtained by multiplying the unit price of the final product by its output.

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< p > Third, gross domestic product generally refers only to the value caused by market activities.

Non productive activities, underground pactions and black market pactions are not included in GDP, such as household work, self-sufficiency production, gambling and illegal drug trafficking.

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< p > Fourth, GDP is the final product value of production during the calculation period, so it is flow rather than stock.

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< p > fifth, GDP is not a real wealth of circulation, it is only using the standard monetary mean to express the amount of wealth.

But what can be produced can not be completely pformed into the wealth of circulation. This is not necessarily true.

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