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. 2024 Mar 17;14:6415. doi: 10.1038/s41598-024-57183-y

Table 9.

Endogeneity test results.

Variables (1) (2) (3) (4)
Exploratory Exploitative Exploratory Exploitative
DT 0.064** 0.051***
(0.022) (0.028)
Mobile 0.274*** 0.291***
(0.062) (0.057)
Controls YES YES YES YES
Year YES YES YES YES
Industry YES YES YES YES
_cons − 0.142 − 0.189 − 0.117 -0.273
(0.138) (0.174) (0.185) (0.127)
Obs 10,273 10,882 10,273 10,882
R2 0.153 0.182 0.128 0.246

t-statistics in parentheses: * p < 0.1, ** p < 0.05, *** p < 0.01.