Do Marital Status and Computer Usage Really Change the Wage Structure?
使用多种识别策略和数据源控制个人能力，发现婚姻状况和电脑使用对工资的因果影响不大，即使调整了测量误差和双胞胎能力差异。
Abstract This analysis uses several identification strategies and data sources to control for individual ability and determine the causal effect of marital status and computer usage on wages. Although data from the CPS, NLSY and a data set of identical twins show that there are large cross-sectional effects of these variables, new econometric specifications are applied to these data which indicate that marital status and computer usage are not important causal determinants of earnings, even after adjustments are made for measurement error and within-twin differences in ability.