Heteroskedastic-autocorrelation robust standard errors. N = 1,558. 1Null hypothesis: the instruments are valid. 2Null hypothesis: the instruments are weak. 3Null hypothesis: Temperature and innovation
This table presents the robustness test of PSM-DID by using alternative sets of matching variables. Only coefficients of interest (TREAT×POST) are included in this table. Columns (1) and (2) show the
