Sleep and the Allocation of Time
Sleep must be considered subject to choice and affected by the same economic variables that affect other uses of time. Using aggregated data for 12 countries, a cross-section of microeconomic data, and a panel of households, we demonstrate that increases in time spent in the labor market reduce sleep time. Each additional hour of market work reduces sleep by roughly 10 minutes (and waking nonmarket time by 50 minutes). The total time available for work and leisure is thus itself subject to choice. Interestingly too, otherwise identical women sleep significantly less than men (even though the average Woman sleeps slightly more). We develop a theory of the demand for sleep that differs from standard models by its assumption that sleep affects wages through its impact on labor-market productivity. Estimates of a system of demand equations demonstrate that higher wage rates reduce sleep time among men, an effect that is entirely offset by their positive effect on waking nonmarket time. Among Women the wage effect on waking nonmarket time is negative and small, but the effect on sleep is negative and quite large. These results, and the model they are based on, allow a more s subtle interpretation of standard results in the labor supply literature.
|Date of creation:||May 1989|
|Publication status:||published as Journal of Political Economy, Vol. 98, No. 5, Part 1, October 1990,pp. 922-943.|
|Contact details of provider:|| Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.|
Web page: http://www.nber.org
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- Kooreman, Peter & Kapteyn, Arie, 1987.
"A Disaggregated Analysis of the Allocation of Time within the Household,"
Journal of Political Economy,
University of Chicago Press, vol. 95(2), pages 223-249, April.
- Kooreman, P. & Kapteyn, A.J., 1984. "A disaggregated analysis of the allocation of time within the household," Research Memorandum FEW 153, Tilburg University, School of Economics and Management.
- Murphy, Kevin M & Topel, Robert H, 2002. "Estimation and Inference in Two-Step Econometric Models," Journal of Business & Economic Statistics, American Statistical Association, vol. 20(1), pages 88-97, January.
- Murphy, Kevin M & Topel, Robert H, 1985. "Estimation and Inference in Two-Step Econometric Models," Journal of Business & Economic Statistics, American Statistical Association, vol. 3(4), pages 370-379, October.
- Stafford, Frank & Duncan, Greg J., 1979. "The Use of Time and Technology by Households in the United States," Working Paper Series 21, Research Institute of Industrial Economics.
- Michael Abbott & Orley Ashenfelter, 1976. "Labour Supply, Commodity Demand and the Allocation of Time," Review of Economic Studies, Oxford University Press, vol. 43(3), pages 389-411.
- Michael Abbott & Orley Ashenfelter, 1974. "Labor Supply, Commodity Demand, and the Allocation of Time," Working Papers 437, Princeton University, Department of Economics, Industrial Relations Section..
- James J. Heckman & Thomas E. Macurdy, 1980. "A Life Cycle Model of Female Labour Supply," Review of Economic Studies, Oxford University Press, vol. 47(1), pages 47-74. Full references (including those not matched with items on IDEAS)
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