求助高手搜索两篇文献
1、Woong Lee·Public Employment Offices and the Labor Market in the United States between 1890 and 1940 [Z]·
NBER“Labor Market Intermediation Conference”Working Paper, 2007·

2、Peter Swivel, Christoph Zaborowski·Employment Service: Public or Private? [J]·Public Choice, 1996, (89):131-162·
谢谢
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