Advertising and Labor Market Matching: A Tour through the Times
通过调查几个世纪以来与就业相关的报纸广告，识别出四个时代（工人和公司都不发广告、主要是工人发广告、主要是公司发广告、双方都定期发广告），并用匹配模型解释这些时代及其转变原因。
Surveying employment-related newspaper advertisements over several centuries, we identify four eras (neither workers nor firms posted ads, mostly workers posted ads, mostly firms posted ads, and both parties regularly posted ads). These eras can be understood in the context of the equilibrium of a matching model that incorporates strategic interactions by both sides of the labor market. Potential explanations for transitions across eras include increasing literacy rates, expansion of social insurance programs, growth in the labor force and firm size, reduction in mobility costs and search frictions, and the internet.