Changing the Price of Marriage: Evidence from Blood Test Requirements
利用1980至2008年间各州取消结婚血检要求的时间差异，发现该政策使结婚证发放量下降6.1%，对低社会经济群体影响最大。
We use state repeals of blood test requirements (BTRs) for a marriage license that occurred between 1980 and 2008 to examine the impact of changes in the price of marriage on the marriage decision. Using a within-group estimator that holds constant state and year effects and exploits variation in the repeal dates of BTRs across states, we find that BTRs are associated with a 6.1 percent decrease in marriage licenses issued by a state. This main finding is supported with results from individual-level marriage license and Current Population Survey data. The largest effects are found for lower socioeconomic groups.