Some Recent Developments in the Study of Unemployment: A Survey
If there is any one message of the voluminous research concerning unemployment, it is that the latter cannot be summarized by a single number. While this may seem a sweeping statement, surely no one would argue that the causes and cures of such diverse phenomena as seasonal, cyclical, disguised, and structural unemployment are the same, or even that they represent the same social costs per percentage point.
Adams, James D. and Mattila, J. Peter, "Some Recent Developments in the Study of Unemployment: A Survey" (1977). Economic Staff Paper Series. 128.
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