The Employment Effect in Retail Trade of California's 1988 Minimum Wage Increase
利用1988年加州最低工资大幅上涨这一自然实验，发现最低工资上涨减缓了低工资零售业的就业增长，支持了教科书分析。
In this paper, the authors study the outcome of an unusually clean natural experiment--California's large minimum wage increase of 1988. Two different approaches to evaluating the experiment result in the same conclusion: the textbook analysis of minimum wages holds true. In particular, the authors find that employment growth in California's low-wage retail trade industry was slowed by the minimum wage increase.