582PART NINETHE REAL ECONOMY IN THE LONG RUNThe BLS defines the unemployment rateas the percentage of the labor force thatis unemployed:Unemployment rate 100.The BLS computes unemployment rates for the entire adult population and formore narrow groups—blacks, whites, men, women, and so on.The BLS uses the same survey to produce data on labor-force participation.The labor-force participation ratemeasures the percentage of the total adult pop-ulation of the United States that is in the labor force:Labor-force participation rate 100.This statistic tells us the fraction of the population that has chosen to participate inthe labor market. The labor-force participation rate, like the unemployment rate, iscomputed both for the entire adult population and for more narrow groups.To see how these data are computed, consider the figures for 1998. In that year,131.5 million people were employed, and 6.2 million people were unemployed.
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