Local institutions, union wage effects and native–foreign wage gaps
研究了丹麦企业中的地方集体工资谈判如何影响不同国籍（丹麦、瑞典、德国、波兰）跨境通勤者的工资差距，发现地方谈判缩小了6%-12%的工资差距，但地方同伴效应可能扩大波兰籍工人的工资差距。
Local institutions in the shape of collective wage bargaining in firms are important for wage differences among labour of various origins. This paper considers local rent-sharing in Danish firms and finds that local wage bargaining reduces wage gaps between cross-border commuters of Danish, Swedish, German and Polish origins. Wage gaps are found to be between 6% and 12%, while individual union membership reduces the wage gap. Local peer effects, on the other hand, may increase wage gaps particularly for cross-border commuters of Polish origin, which can be interpreted as a form of local club behaviour in bargaining at the firm level.