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u* = √uv

Author

Listed:
  • Pascal Michaillat
  • Emmanuel Saez

Abstract

Most governments are mandated to maintain their economies at full employment. We propose that the best marker of full employment is the efficient unemployment rate, u*. We define u* as the unemployment rate that minimizes the nonproductive use of labor—both jobseeking and recruiting. The nonproductive use of labor is well measured by the number of jobseekers and vacancies, u + v. Through the Beveridge curve, the number of vacancies is inversely related to the number of jobseekers. With such symmetry, the labor market is efficient when there are as many jobseekers as vacancies (u = v), too tight when there are more vacancies than jobseekers (v > u), and too slack when there are more jobseekers than vacancies (u > v). Accordingly, the efficient unemployment rate is the geometric average of the unemployment and vacancy rates: u* = √uv. We compute u* for the United States between 1930 and 2022. We find for instance that the US labor market has been over full employment (u

Suggested Citation

  • Pascal Michaillat & Emmanuel Saez, 2022. "u* = √uv," NBER Working Papers 30211, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:30211
    Note: EFG LS ME PE
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    Cited by:

    1. Mark Setterfield, 2023. "Inflation and distribution during the post-COVID recovery: a Kaleckian approach," Journal of Post Keynesian Economics, Taylor & Francis Journals, vol. 46(4), pages 587-611, October.

    More about this item

    JEL classification:

    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination
    • J63 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Turnover; Vacancies; Layoffs
    • J64 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment: Models, Duration, Incidence, and Job Search

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