TY - JOUR AU - McCallum,Bennett T. TI - Macroeconomics After a Decade of Rational Expectations: Some Critical Issues JF - National Bureau of Economic Research Working Paper Series VL - No. 1050 PY - 1984 Y2 - April 1984 UR - http://www.nber.org/papers/w1050 L1 - http://www.nber.org/papers/w1050.pdf N1 - Author contact info: Bennett T. McCallum Tepper School of Business, Posner 256 Carnegie Mellon University Pittsburgh, PA 15213 Tel: 412/268-2347 Fax: 412/268-6830 E-Mail: bm05@andrew.cmu.edu AB - The main section of this paper discusses competing theories of aggregate supply that are currently being utilized in macroeconomic models with rational expectations. The distinction between flexible-price equilibrium models and models with nominal contracts is emphasized and three models of the latter type are described and contrasted, it is argued that rejection of flexible-price equilibrium theories, as the evidence seems to warrant,does not require abandonment of the equilibrium approach. Also included are remarks on the present status of the rational expectations version of the natural-rate hypothesis. The second section of the paper briefly discusses a few issues concerning the equilibrium approach and aggregate demand, with attention devoted to the overlapping-generations framework. The third section considers a recent attempt, involving the use of "vector autoregression"models, to denigrate the importance of the Lucas critique of traditional policy-evaluation procedures. ER -