Unions and Nonunion Wage Dispersion
研究发现工会通过提高低薪工人工资，降低了非工会部门的工资离散度，利用当前人口调查数据验证了该假说。
Previous research has found that union standard rate policies lower the dispersion of union wages and that unions indirectly raise nonunion wage levels, as firms weigh the probability of unionizing and wage costs. These two findings imply that unions lower the dispersion of nonunion wages since, for a given payroll, a nonunion firm can achieve the greatest reduction in the probability of unionism by giving raises to those who would benefit most from a union. This hypothesis is confirmed on Current Population Survey data: taking into account the endogeneity of unionism, ceteris paribus, nonunion wage dispersion is lower in more highly unionized industries. Copyright 1987 by MIT Press.