Labour productivity during the Great Depression and the Great Recession in UK engineering and metal manufacture
[The Productivity Puzzle: a Firm-level Investigation into Employment Behaviour and Resource Allocation over the Crisis]
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- Hart, Robert A., 2020. "Labour Productivity during the Great Depression and the Great Recession in UK Engineering and Metal Manufacture," IZA Discussion Papers 13528, Institute of Labor Economics (IZA).
References listed on IDEAS
- Jordi Galí & Thijs van Rens, 2021.
"The Vanishing Procyclicality of Labour Productivity [Why have business cycle fluctuations become less volatile?],"
The Economic Journal, Royal Economic Society, vol. 131(633), pages 302-326.
- Jordi Galí & Thijs van Rens, 2008. "The vanishing procyclicality of labor productivity," Economics Working Papers 1230, Department of Economics and Business, Universitat Pompeu Fabra, revised Jul 2010.
- Gali, Jordi & van Rens, Thijs, 2015. "The Vanishing Procyclicality of Labor Productivity," The Warwick Economics Research Paper Series (TWERPS) 1062, University of Warwick, Department of Economics.
- GalÌ, Jordi & van Rens, Thijs, 2020. "The Vanishing Procyclicality of Labour Productivity," The Warwick Economics Research Paper Series (TWERPS) 1271, University of Warwick, Department of Economics.
- Gali, Jordi & van Rens, Thijs, 2014. "The Vanishing Procyclicality of Labor Productivity," Economic Research Papers 270221, University of Warwick - Department of Economics.
- GalÌ, Jordi & van Rens, Thijs, 2020. "The Vanishing Procyclicality of Labour Productivity," CAGE Online Working Paper Series 477, Competitive Advantage in the Global Economy (CAGE).
- Galí, Jordi & van Rens, Thijs, 2010. "The Vanishing Procyclicality of Labor Productivity," IZA Discussion Papers 5099, Institute of Labor Economics (IZA).
- GalÃ, Jordi & van Rens, Thijs, 2014. "The Vanishing Procyclicality of Labor Productivity," CEPR Discussion Papers 9853, C.E.P.R. Discussion Papers.
- Thijs van Rens & Jordi Gali, 2010. "The Vanishing Procyclicality of Labor Productivity," 2010 Meeting Papers 705, Society for Economic Dynamics.
- Galí, Jordi & van Rens, Thijs, 2010. "The vanishing procyclicality of labor productivity," Kiel Working Papers 1641, Kiel Institute for the World Economy (IfW Kiel).
- Jordi Galí & Thijs van Rens, 2014. "The Vanishing Procyclicality of Labor Productivity," Working Papers 489, Barcelona School of Economics.
- Fay, Jon A & Medoff, James L, 1985. "Labor and Output over the Business Cycle: Some Direct Evidence," American Economic Review, American Economic Association, vol. 75(4), pages 638-655, September.
- Robert A. Hart, 2005.
"General human capital and employment adjustment in the Great Depression: apprentices and journeymen in UK engineering,"
Oxford Economic Papers, Oxford University Press, vol. 57(1), pages 169-189, January.
- Hart, Robert A., 2003. "General Human Capital and Employment Adjustment in the Great Depression: Apprentices and Journeymen in UK Engineering," IZA Discussion Papers 799, Institute of Labor Economics (IZA).
- Gary S. Becker, 1962.
"Investment in Human Capital: A Theoretical Analysis,"
NBER Chapters, in: Investment in Human Beings, pages 9-49,
National Bureau of Economic Research, Inc.
- Gary S. Becker, 1962. "Investment in Human Capital: A Theoretical Analysis," Journal of Political Economy, University of Chicago Press, vol. 70(5), pages 1-9.
- repec:hal:pseose:halshs-00754526 is not listed on IDEAS
- Ben S. Bernanke & James Powell, 1986.
"The Cyclical Behavior of Industrial Labor Markets: A Comparison of the Prewar and Postwar Eras,"
NBER Chapters, in: The American Business Cycle: Continuity and Change, pages 583-638,
National Bureau of Economic Research, Inc.
- Ben S. Bernanke & James L. Powell, 1984. "The Cyclical Behavior of Industrial Labor Markets: A Comparison of the Pre-War and Post-War Eras," NBER Working Papers 1376, National Bureau of Economic Research, Inc.
- Bernanke, Ben S & Parkinson, Martin L, 1991.
"Procyclical Labor Productivity and Competing Theories of the Business Cycle: Some Evidence from Interwar U.S. Manufacturing Industries,"
Journal of Political Economy, University of Chicago Press, vol. 99(3), pages 439-459, June.
- Ben S. Bernanke & Martin L. Parkinson, 1990. "Procyclical Labor Productivity and Competing Theories of the Business Cycle: Some Evidence from Interwar U.S. Manufacturing Industries," NBER Working Papers 3503, National Bureau of Economic Research, Inc.
- Julien Grenet, 2013.
"Is Extending Compulsory Schooling Alone Enough to Raise Earnings? Evidence from French and British Compulsory Schooling Laws,"
PSE-Ecole d'économie de Paris (Postprint)
halshs-00754526, HAL.
- Julien Grenet, 2013. "Is Extending Compulsory Schooling Alone Enough to Raise Earnings? Evidence from French and British Compulsory Schooling Laws," Post-Print halshs-00754526, HAL.
- Richard Blundell & Claire Crawford & Wenchao Jin, 2014.
"What Can Wages and Employment Tell Us about the UK's Productivity Puzzle?,"
Economic Journal, Royal Economic Society, vol. 0(576), pages 377-407, May.
- Richard Blundell & Claire Crawford & Wenchao (Michelle) Jin, 2013. "What can wages and employment tell us about the UK's productivity puzzle?," IFS Working Papers W13/11, Institute for Fiscal Studies.
- Michael C. Burda & Jennifer Hunt, 2011.
"What Explains the German Labor Market Miracle in the Great Recession,"
Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 42(1 (Spring), pages 273-335.
- Burda, Michael C. & Hunt, Jennifer, 2011. "What Explains the German Labor Market Miracle in the Great Recession?," IZA Discussion Papers 5800, Institute of Labor Economics (IZA).
- Burda, Michael C. & Hunt, Jennifer, 2011. "What explains the German labor market miracle in the Great Recession?," SFB 649 Discussion Papers 2011-031, Humboldt University Berlin, Collaborative Research Center 649: Economic Risk.
- Burda, Michael & Hunt, Jennifer, 2011. "What Explains the German Labor Market Miracle in the Great Recession?," CEPR Discussion Papers 8520, C.E.P.R. Discussion Papers.
- Michael C. Burda & Jennifer Hunt, 2011. "What Explains the German Labor Market Miracle in the Great Recession?," NBER Working Papers 17187, National Bureau of Economic Research, Inc.
- Arthur F. Burns & Wesley C. Mitchell, 1946. "Measuring Business Cycles," NBER Books, National Bureau of Economic Research, Inc, number burn46-1, June.
- Hart, Robert A., 2019. "Labor Productivity during the Great Depression in UK Manufacturing," IZA Discussion Papers 12379, Institute of Labor Economics (IZA).
- Herman De Jong & Pieter Woltjer, 2011. "Depression dynamics: a new estimate of the Anglo‐American manufacturing productivity gap in the interwar period," Economic History Review, Economic History Society, vol. 64(2), pages 472-492, May.
- Eric Wigham, 1973. "The Power to Manage," Palgrave Macmillan Books, Palgrave Macmillan, number 978-1-349-01264-0.
- Julien Grenet, 2013. "Is Extending Compulsory Schooling Alone Enough to Raise Earnings? Evidence from French and British Compulsory Schooling Laws," Scandinavian Journal of Economics, Wiley Blackwell, vol. 115(1), pages 176-210, January.
- Bordo, Michael D. & Evans, Charles L., 1995.
"Labor productivity during the Great Depression,"
Economics Letters, Elsevier, vol. 47(1), pages 41-45, January.
- Michael D. Bordo & Charles L. Evans, 1993. "Labor productivity during the Great Depression," Working Paper Series, Macroeconomic Issues 93-10, Federal Reserve Bank of Chicago.
- Michael D. Bordo & Charles L. Evans, 1993. "Labor Productivity During the Great Depression," NBER Working Papers 4415, National Bureau of Economic Research, Inc.
- Benedikt Herz & Thijs Van Rens, 2020. "The labor market in the UK, 2000–2019," IZA World of Labor, Institute of Labor Economics (IZA), pages 422-422, February.
- Jeff E. Biddle, 2014. "Retrospectives: The Cyclical Behavior of Labor Productivity and the Emergence of the Labor Hoarding Concept," Journal of Economic Perspectives, American Economic Association, vol. 28(2), pages 197-212, Spring.
- João Paulo Pessoa & John Van Reenen, 2014. "The UK Productivity and Jobs Puzzle: Does the Answer Lie in Wage Flexibility?," Economic Journal, Royal Economic Society, vol. 0(576), pages 433-452, May.
- Casey B. Mulligan, 2011. "Rising Labor Productivity during the 2008-9 Recession," NBER Working Papers 17584, National Bureau of Economic Research, Inc.
- Brown , W. & Bryson , A. & Forth , J., 2008. "Competition and the Retreat from Collective Bargaining," Cambridge Working Papers in Economics 0831, Faculty of Economics, University of Cambridge.
- Robert A. Hart & James R. Malley, 1999. "Procyclical Labour Productivity: A Closer Look at a Stylized Fact," Economica, London School of Economics and Political Science, vol. 66(264), pages 533-550, November.
- John Pencavel, 2015. "The Productivity of Working Hours," Economic Journal, Royal Economic Society, vol. 125(589), pages 2052-2076, December.
- Bell, David N.F. & Hart, Robert A., 2019. "The Decline of Overtime Working in Britain," IZA Discussion Papers 12651, Institute of Labor Economics (IZA).
- Robert A. Margo, 1993.
"Employment and Unemployment in the 1930s,"
Journal of Economic Perspectives, American Economic Association, vol. 7(2), pages 41-59, Spring.
- Robert A. Margo, 1992. "Employment and Unemployment in the 1930s," NBER Working Papers 4174, National Bureau of Economic Research, Inc.
- Walter Y. Oi, 1962. "Labor as a Quasi-Fixed Factor," Journal of Political Economy, University of Chicago Press, vol. 70(6), pages 538-538.
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More about this item
JEL classification:
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
- J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
- J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
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