Table 9

The result of robustness analysis

Ln(Tp_per)Ln(Tp1_per)Ln(Tp2_per)Ln(Tp3_per)
Ln(Labor_per)0.309***0.316***0.549***0.698***
(0.022)(0.023)(0.043)(0.066)
Ln(Rfi_per) × Ln(Labor_per)−0.034*−0.141***−0.159***−0.347***
(0.020)(0.021)(0.039)(0.059)
Ln(Per_tfld) × Ln(Labor_per)−0.057***−0.028**0.0140.051
(0.011)(0.012)(0.021)(0.033)
Ln(Rfi_per) × Ln(Per_tfld)0.009−0.042***0.308***0.259***
(0.119)(0.175)(0.472)(0.420)
NFPP0.011−0.0100.0560.090*
(0.018)(0.019)(0.035)(0.053)
RCFT−0.113**−0.109*−0.145−0.122
(0.055)(0.058)(0.108)(0.165)
RCFT 5th−0.141**−0.142**−0.153−0.117
(0.063)(0.068)(0.125)(0.191)
RCFT 10th−0.071−0.063−0.080−0.005
(0.056)(0.060)(0.111)(0.170)
Variable controlsYesYesYesYes
Year FEYesYesYesYes
Region FEYesYesYesYes

Note(s): ① N = 620; ② *** is significant at 1%, ** is significant at 5%, * is significant at 10%; ③ Standard error in parentheses; ④ All control variables, year dummy variables and regional dummy variables in the benchmark regression are included in the model, and the estimation results of dummy variables are omitted

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