过境免签政策与入境旅游增长——基于PSM-DID方法的分析
宋昌耀, 贾然, 厉新建

Transit Visa-free Policy and Inbound Tourism Growth: An Analysis based on PSM-DID Method
Changyao SONG, Ran JIA, Xinjian LI
表2 共同趋势检验
Tab. 2 Common trend hypothesis test
模型(1) 模型(3)
匹配前 匹配后
policy —0.984*** —0.059 8
(—3.86) (—0.37)
常数项 2.153*** 2.333***
(15.41) (18.86)
Log Likelihood —550.4 —418.8
N 252 252