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  • van der Ploeg, Frederick

Abstract

After a brief review of classical, Keynesian, New Classical and New Keynesian theories of macroeconomic policy, we assess whether New Keynesian Economics captures the quintessential features stressed by JM Keynes. Particular attention is paid to Keynesian features omitted in New Keynesian workhorses such as the micro-founded Keynesian multiplier and the New Keynesian Phillips curve. These theories capture wage and price sluggishness and aggregate demand externalities by departing from a competitive framework and give a key role to expectations. The main deficiencies, however, are the inability to predict a pro-cyclical real wage in the face of demand shocks, the absence of inventories, credit constraints and bankruptcies in explaining the business cycle, and no effect of the nominal as well as the real interest rate on aggregate demand. Furthermore, they fail to allow for quantity rationing and to model unemployment as a catastrophic event. The macroeconomics based on the New Keynesian Phillips curve has quite a way to go before the quintessential Keynesian features are captured.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 4897.

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Date of creation: Feb 2005
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Handle: RePEc:cpr:ceprdp:4897

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Keywords: bankruptcy; inventories; Keynesian economics; liquidity; monetary policy; monopolistic competition; New Keynesian Phillips curve; nominal wage rigidity; pro-cyclical real wage; unemployment; welfare;

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Cited by:
  1. Théret, Bruno, 2011. "Du keynésianisme au libertarianisme. Les transformations du régime du savoir économique autorise depuis les années 1970 : une approche par la place que la monnaie y tient," Economics Papers from University Paris Dauphine 123456789/7629, Paris Dauphine University.
  2. Argesanu, Nicolae Razvan, 2012. "Statul de drept din perspectivă economică
    [Rule of law from economic perspective]
    ," MPRA Paper 36643, University Library of Munich, Germany.
  3. repec:dgr:umamet:2007050 is not listed on IDEAS
  4. Ronny Mazzocchi & Roberto Tamborini & Hans-Michael Trautwein, 2009. "The Two Triangles: what did Wicksell and Keynes know about macroeconomics that modern economists do not (consider)?," Department of Economics Working Papers 0906, Department of Economics, University of Trento, Italia.
  5. Roberto Tamborini, 2008. "The macroeconomics of imperfect capital markets. Whither saving-investment imbalances?," Department of Economics Working Papers 0815, Department of Economics, University of Trento, Italia.
  6. Roberto Tamborini, 2006. "Back to Wicksell? In search of the foundations of practical monetary policy," Department of Economics Working Papers 0602, Department of Economics, University of Trento, Italia.

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