Page 51 - IDEA Study 8 2017 Direct subsidies and R&D output in firms
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Table A5. Propensity score matching estimates by the office of IP protection and matching estimator (conventional) IP Program protection me Matching estimator NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel NN 1 NN 3 NN 5 NN 3 (caliper 0.01) Kernel (t) (t+1) (t+2) N 20,104 20,104 20,104 20,055 20,104 20,783 20,783 20,783 20,731 20,783 16,027 16,027 16,027 15,882 16,027 20,104 20,104 20,055 17,683 20,104 20,783 20,783 20,783 20,731 20,783 16,027 16,027 16,027 15,882 16,027 IMPULS TIP ALFA IMPULS TIP ALFA 0.043 0.033 0.036 (0.031) (0.025) (0.024) 0.023 0.028 0.028 0.028 0.036 0.097*** 0.091*** 0.094*** 0.072*** 0.082*** 0.064 0.091*** 0.085*** 0.093*** (0.030) (0.025) (0.024) (0.024) (0.024) (0.031) (0.024) (0.025) (0.022) (0.027) (0.041)† (0.030)† (0.029)† (0.026)† 0.050 0.058** 0.056** 0.074*** 0.063** 0.095*** 0.111*** 0.108*** 0.103*** 0.118*** 0.092** 0.103*** 0.106*** 0.077*** 0.106*** 0.013* -0.002 0.002 0.016** 0.008 (0.034) (0.028) (0.027) (0.024) (0.027) (0.032)† (0.027)† (0.028)† (0.023)† (0.026)† (0.038)† (0.028)† (0.026)† (0.025)† (0.033)† (0.008) (0.012) (0.010) (0.008) (0.011) Czech IP protection 0.033 (0.025) 0.043* (0.024) 0.027 (0.031) 0.007 (0.027) -0.009 (0.028) 0.005 (0.024) 0.002 (0.028) 0.001 (0.040) 0.046 (0.028) 0.042 (0.026) 0.033 (0.027) 0.052 (0.034) 0.001 (0.007) -0.010 (0.011) -0.005 (0.010) 0.003 (0.007) -0.004 (0.011) 0.015 (0.015) 0.003 (0.018) -0.003 (0.017) 0.004 (0.014) 0.005 (0.014) -0.003 (0.016) -0.007 (0.017) -0.008 (0.017) -0.004 (0.013) -0.005 (0.018) 0.101*** (0.032)† Internatio nal IP protection -0.003 0.001 0.002 0.010 0.004 0.023** 0.018* 0.018* 0.011 0.018* 0.020 0.009 0.009 0.003 0.009 (0.009) (0.011) (0.010) (0.006) (0.011) (0.012) (0.011) (0.009) (0.014) (0.011) (0.014)† (0.013)† 0.021 (0.013)† 0.019* (0.012)† 0.022** (0.010)† 0.016 (0.013)† 0.020* (0.011)† 0.014 (0.011)† 0.015 (0.010)† (0.014)† 0.011 (0.011)† (0.015)† (0.016)† 0.003 (0.010)† 0.011 (0.012)† Note: Abadie Imbens robust standard errors in parentheses for nearest neighbour matching; bootstrapped standard errors after 1,000 replications in parentheses for kernel matching; * p<0.05, ** p<0.01, *** p<0.001. † IP application data are not complete due to the publishing delay. 49
