A Time-Series Analysis of Self-Employment in the United States
分析1970年代美国非农劳动力中自雇比例止跌回升的原因，利用一般均衡模型和宏观时间序列数据检验，发现技术、产业结构、税率和社会保障退休金的变化是主要驱动因素。
In the early 1970s the proportion of the nonagricultural labor force self-employed in the United States ceased its downward trend and has been rising ever since. This study provides an analysis of the causes of this change. A general-equilibrium model of self- employment and wage employment is analyzed, and aggregate U.S. time- series data are used to test predictions derived from the model. The empirical analysis indicates that changes in technology, industrial structure, tax rates, and social-security retirement benefits have contributed to the reversal of the previous downward trend, which had persisted for over a century. Copyright 1987 by University of Chicago Press.