tobit | probit | |
变量 | 创新绩效 | 是否有创新产出 |
(1) | (2) | |
强宗族区 | −0.0421*** | −0.2026*** |
(0.01309) | (0.04815) | |
补贴强度 | 3.8891*** | 21.0570*** |
(0.97374) | (4.10474) | |
强宗族*补贴强度 | 0.1489 | −2.9957 |
(1.37126) | (5.79196) | |
销售额 | 0.0148*** | 0.0509*** |
(0.00103) | (0.00416) | |
销售额二次项 | −0.0001*** | −0.0004*** |
(0.00001) | (0.00005) | |
出口占销售比 | 0.2365*** | 1.2180*** |
(0.01668) | (0.06708) | |
利润率滞后项 | −0.3563*** | −0.4685 |
(0.10261) | (0.40905) | |
人均资本 | 1.0599*** | 5.1492*** |
(0.24708) | (0.99406) | |
广告密度 | 18.5064*** | 105.0431*** |
(2.80201) | (12.51693) | |
广告密度二次项 | −612.8756*** | −3693.4194*** |
(136.68626) | (629.75154) | |
企业年龄 | 0.0041*** | 0.0161*** |
(0.00079) | (0.00300) | |
县人均GDP | 0.0019*** | 0.0049*** |
(0.00044) | (0.00141) | |
常数项 | −1.1363*** | −4.4710*** |
(0.11120) | (0.20517) | |
年份 | YES | YES |
行业 | YES | YES |
省份 | YES | YES |
样本量 | 42,726 | 42,726 |