21.   Economic output is central to budget projections.

22.   Economic output is notoriously hard to measure because the quality of goods changes constantly and because new goods are periodically introduced.

23.   Exports account for about two-fifths of domestic economic output.

24.   For many economists the question is not whether Chinese economic output will overtake that of the United States, but when.

25.   Fourth-quarter economic output, hobbled by a three-week national public workers strike, is expected to have shrunk.

26.   For people to try to replace what the Earth provides, the article suggested, would require every country to at least triple its current economic output.

27.   German economic output stagnated in the third quarter, the government said, blaming high labor costs and an overvalued currency for hobbling business investment and slowing the economy.

28.   GNP is a standard measure of economic output, including income from abroad.

29.   Gross Domestic Product is the growth rate that remains after trade deficits are subtracted from domestic economic output.

30.   GNP is a measure of economic output that includes remittances from overseas workers, an important contributor to the Philippine economy.