Explanatory Notes on Main Statistical Indicators

Gross Domestic Product(GDP)refers to the final products at market prices produced by all resident units in a country(or a region)during a certain period of time.Gross domestic product is expressed in three different forms,i.e.value,income,and products respectively.GDP in its value form refers to the total value of all goods and services produced by all resident units during a certain period of time,minus the total value of input of goods and services of the nature of non-fixed assets;in other term,it is the sum of the value-added of all resident units.GDP in the form of income includes the income created by all resident units and distributed to resident and non-resident units.GDP in the form of products refers to the value of all goods and services for final consumption by all resident units minus the net exports of goods and services during a given period of time.In the practice of national accounting,gross domestic product is calculated with three approaches,i.e.production approach,income approach and expenditure approach,which reflect gross domestic product and its composition from different aspects.