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World Economics - Measuring the World Economy
Wanted: Measures of Economic Change
Ralph Turvey, World Economics, June 2001
Economic growth may involve change, but there can be change without economic growth insofar as outputs of some products or employment in some regions or industries grows while there are equal decreases elsewhere. National accounts data do not reveal such shifts, yet they may involve investment and disinvestment, require the acquisition of new skills and cause changes in the location of economic activities. Some simple examples are provided, demonstrating that the rate of growth and the pace of change are by no means perfectly correlated. Hence separate measures of change are required if we are to understand what is happening in the economy.

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