Changes in Hours Fluctuations since the Mid-1980s: What Happened to Middle-Skilled Workers?

Posted: 27 Feb 2019

See all articles by Hee-Seung Yang

Hee-Seung Yang

KDI School of Public Policy and Management

Myung-Kyu Shim

Independent

Date Written: February 26, 2019

Abstract

We find that changes in hours volatilities since the mid-1980s have been more favorable for middle-skilled workers relative to high-skilled and low-skilled workers. In particular, the relative standard deviation of detrended employment of middle-skilled workers to high-skilled workers has dropped by half. This paper argues that the aggregate labor market that has become less favorable for middle-skilled workers at the low frequency had the opposite effects on them at the business cycle frequency. Using a firm model that matches the long-run trend of (1) the relative demand and (2) the relative wage for middle-skilled workers, we show that this simple model can explain about 40 percent of the changes in the relative employment volatility.

Suggested Citation

Yang, Hee-Seung and Shim, Myung-Kyu, Changes in Hours Fluctuations since the Mid-1980s: What Happened to Middle-Skilled Workers? (February 26, 2019). KDI School of Pub Policy & Management Paper , Available at SSRN: https://ssrn.com/abstract=3341762

Hee-Seung Yang (Contact Author)

KDI School of Public Policy and Management ( email )

P.O. Box 184
Seoul, 130-868
Korea, Republic of (South Korea)

Myung-Kyu Shim

Independent ( email )

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