TY - JOUR AU - Hamermesh,Daniel S. TI - Labor Demand: What Do We Know? What Don't We Know? JF - National Bureau of Economic Research Working Paper Series VL - No. 3890 PY - 1991 Y2 - November 1991 UR - http://www.nber.org/papers/w3890 L1 - http://www.nber.org/papers/w3890.pdf N1 - Author contact info: Daniel S. Hamermesh Department of Economics University of Texas Austin, TX 78712-1173 Tel: 512/475-8526 Fax: 512/471-3510 E-Mail: hamermes@eco.utexas.edu AB - This study reviews empirical research on the demand for labor. The static analysis discusses the production parameters describing homogeneous labor and labor disaggregated along various criteria; the distinction between workers and hours; the importance of job dynamics; and the nature of a variety of policies that affect the long-run demand for labor. Issues in the dynamics of demand for workers and hours, including speeds of adjustment for homogeneous and heterogeneous labor, asymmetries, and the nature of adjustment costs are presented. The paper emphasizes how the paucity of appropriate data has limited our ability to obtain reliable estimates of the underlying concepts. ER -