The Long-Run Demand for Skilled and Unskilled Labor in Colombian Manufacturing Plants
利用哥伦比亚制造业工厂面板数据，估计技能与非技能劳动力的长期需求，发现产出弹性分别为0.89和0.76，工资弹性分别为-0.42和-0.65，且技能劳动力的产出弹性更大，非技能劳动力的工资弹性更大。
This note estimates the long-run demand for skilled and unskilled labor using panel data for Colombian manufacturing plants. Unobserved heterogeneity and measurement error problems that commonly arise in microdata production estimates are examined. Output measurement errors cause OLS estimators to underestimate the output and wage response of employment demand. Time-difference estimators exaggerate the measurement error biases. Instrumental-variable estimates of the output elasticities are 0.89 and 0.76 and own-wage elasticities are -0.42 and -0.65 for skilled and unskilled labor, respectively. The output elasticity is larger for skilled labor whereas the wage elasticity is larger for unskilled labor in virtually every industry. © 1997 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology