Liberalized Trade and Worker-Firm Matching
利用1995-2005年瑞典工人-企业匹配数据和关税数据，检验了出口成本降低会增强出口行业工人与企业间正向选择匹配的理论预测，发现结果支持该假说。
Recent theoretical analysis suggests that a reduction in the cost of exporting increases the degree of assortative matching between workers and firms in export-oriented industries. Changes that reduce the cost of imports have an ambiguous impact on matching. We combine detailed Swedish matched worker-firm data from 1995-2005 with tariff data to test these hypotheses. The data cover 94 sectors subject to international competition and include all firms with at least 20 employees. Our findings strongly support the theoretical predictions.