TY - JOUR AU - Cochrane,John H. TI - The Sensitivity of Tests of the Intertemporal Allocation of Consumption to Near-Rational Alternatives JF - National Bureau of Economic Research Working Paper Series VL - No. 2730 PY - 1989 Y2 - November 1989 UR - http://www.nber.org/papers/w2730 L1 - http://www.nber.org/papers/w2730.pdf N1 - Author contact info: John H. Cochrane Booth School of Business University of Chicago 5807 S. Woodlawn Chicago, IL 60637 Tel: 773/702-3059 Fax: 773/702-0458 E-Mail: john.cochrane@chicagobooth.edu AB - This paper presents calculations of the utility cost to consumers of following alternative decision rules in the environments specified by tests of the intertemporal allocation of consumption on aggregate data. The alternatives include excess and inadequate sensitivity to income and interest rate changes and ignoring information. The calculations find that the costs of large deviations from the optimal decision rule--consumption equal to current income, for example--are on the order of l cent to $1 per quarter. They are interpreted to suggest that the theory does not make predictions that are robust to small inaccuracies of modeling, including small costs of transactions and information, and that those small costs can account for rejections of the theory as it is applied to aggregate US data. ER -