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计数数据模型–全样本(1)(2)(3)(4)(5)(6)PoissonPoissonNegbinNegbinNegbinNegbin0.2590.2470.2290.1260.1540.130(0.167)(0.161)(0.180)(0.207)(0.193)(0.189)0.766***0.641***0.603**0.522**0.516**0.483**(0.217)(0.222)(0.249)(0.250)(0.257)(0.216)0.442***0.292*0.2510.2470.1780.135(0.150)(0.155)(0.212)(0.297)(0.283)(0.270)0.687**0.593**0.549*0.3550.2980.243(0.268)(0.274)(0.296)(0.326)(0.304)(0.327)CERN(5,6)1.528***1.394***1.368***1.012***0.963***0.899***(0.284)(0.292)(0.357)(0.348)(0.304)(0.316)1.297***1.264***1.165**1.352***1.410***1.303***(0.348)(0.376)(0.553)(0.404)(0.419)(0.390)1.076***0.807**0.7210.2350.1770.083(0.337)(0.355)(0.516)(0.574)(0.596)(0.732)高科技0.534*0.690**0.648***0.641*0.796**0.763**(0.284)(0.247)(0.336)(0.319)(0.329)Mediumi2.659**2.596**2.631**2.707**2.651**2.671**(1.281)(1.216)(1.172)(1.233)(1.155)(1.117)大3.005**2.926**2.932**3.082***3.025***3.033***(1.256)(1.267)(1.248)(1.144)(1.137)(1.130)V大5.519***5.173***5.123***5.274***4.890***4.855***(1.395)(1.425)(1.477)(1.254)(1.286)(1.321)平均pi0.1840.2500.2860.3830.5160.536(0.430)(0.438)(0.411)(0.411)(0.427)(0.399)IFAit0.121**0.121**0.133***(0.049)(0.048)(0.051)(0.052)订单10.0350.034(0.118)(0.124)pctc,t-0.028-0.020(0.024)(0.034)过度分散()3.51233.30613.3070c0.00000.00000.00000.00000.00000.0000s0.00000.00000.00000.00000.00000.0000t0.00040.00000.00000.00000.00000.0000*p<0.1,**p<0.05,***p<0.01。注:标准错误。括号内按扇区(即2位NACE代码)分组;“”国家FE(“部门FE”/“年度FE”)显示了与联合零假设Wald检验相关的p值,即国家(部门/年度)固定效应在统计上不显著。过度分散试验(p值):414.90(0.0000)、380.55(0.0000)、377.23(0.0000)。
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