National Accounts
The source of national income statistics presented in this chapter is derived from the
publication which is entitled, “National Income of Thailand” as published by the Office of the
National Economic and Social Development Board, Office of the Prime Minister.
“National Income” statistics are the economic indicator of the nation. This type of data
reflects the changes of the economy in relation to production, consumption, investment, savings,
income and expenditures as a true indicator of the economic situation for each year. It serves as an
essential instrument for the analysis procedures to formulate the economic policy and planning for
both public and private sectors. Furthermore, this statistics are the important tools for evaluating the
development of the national economy according to the targets of the National Economic and Social
Development Plan.
The estimations of the national income of Thailand were made in accordance with the
System of National Accounts. The result of the national income estimation on production approach,
expenditure approach, and income approach are the same value.
Production approach
Gross Domestic Products (GDP) is the summation of all the values added of the domestic
production which has been classified into 11 sectors. The value added of each sector represents the
sales of that sector less the value of goods and services purchased from other sector.
Gross National Products (GNP) at current market price is the total of Gross Domestic
Products (GDP) at current market prices adds net factor income payment from the rest of the world
before the deduction of provision for the consumption of fix capital.
Gross National Products (GNP) at constant price, the purpose of its estimation is to obtain
the real value of all goods and services in the economy during a certain period without any change
of the price. The GNP at constant price was calculated by using price in the year of 1988 as the base
year.
Gross Domestic Products at factor cost is the total of Gross Domestic Products (GDP) at
current market prices less indirect taxes.
