So, for example, when Americans receive more income from their overseas investments than foreigners receive from their investments in the United States, American GNP will be somewhat larger than GDP in that year. If Americans receive less income from their overseas investments than foreigners receive from their US investments, on the other hand, American GNP will be somewhat smaller than GDP (http://www.context.org/PEOPLE/celeste/gnpp.htm).
Equivalent estimates of GNP (or GDP) produced in a given year may theoretically be arrived at through at least three different accounting approaches, depending upon whether the transactions that determine the prices of final goods and services are looked at and tallied up by focussing on the buying or by focussing on the proceeds from selling or by focussing on the nature of the products themselves. Using the expenditure approach, you can estimate total GNP as the sum of estimates of the amounts of money that are spent on final goods and services by households (Consumption), by business firms (Investment), by government (Government Purchases), and by the world outside the country (Net Exports). ...Show more