The value of the global gross national product GNP is

Researches have put an average price tag of US $ 33 trillion a year, on the fundamental ecosystems services, which are largely taken for granted because they are free. This is nearly how many times the value of the global gross national product (global GNP)?

Calculate from the following data, Gross national product at factor cost by (a) Income method (b) Expenditure method :

Calculate : Gross national product at factor cost :

From the following data calculate Gross national product at market price :

Gross primary productivity is

Calculate gross domestic product at market price and gross national product at factor cost :