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. 2021 Aug 2;12:688069. doi: 10.3389/fphar.2021.688069

TABLE 3.

Estimates of the demand by therapeutic drug classes.

Dependent variable: log(Q)
Specification (1) Specification (2)
Anti-tumor CVD Antimicrobial Anti-tumor CVD Antimicrobial
L1.logQ 0.356*** 0.0896*** 0.213*** 0.337*** 0.0667** 0.175***
(0.0471) (0.0275) (0.0156) (0.0447) (0.0272) (0.0154)
L2.logQ 0.108** −0.00190 0.0355*** 0.114** −0.0186 0.0240***
(0.0469) (0.0258) (0.00875) (0.0451) (0.0253) (0.00828)
L3.logQ 0.192*** 0.00953 0.0298*** 0.190*** 0.00727 0.0251***
(0.0544) (0.0252) (0.00841) (0.0524) (0.0244) (0.00780)
L4.logQ 0.0104 0.0805*** 0.0514*** 0.0166 0.0733*** 0.0493***
(0.0526) (0.0261) (0.00814) (0.0505) (0.0254) (0.00752)
Log(P) −0.192** −1.100*** −0.695*** 0.541 −0.713*** −2.062***
(0.0865) (0.149) (0.0314) (0.561) (0.207) (0.216)
Log(P)*Generic −0.716 −0.630*** 1.385***
(0.535) (0.242) (0.218)
Log(PcGM) 0.0668 0.153 0.141*** 0.0590 0.182 0.170***
(0.0507) (0.148) (0.0500) (0.0491) (0.144) (0.0464)
Log(PcTM) 0.209*** 0.444*** 0.277*** 0.189*** 0.390*** 0.239***
(0.0529) (0.120) (0.0221) (0.0538) (0.118) (0.0214)
Log(M_size) 0.392*** 0.712*** 0.712*** 0.428*** 0.745*** 0.729***
(0.0478) (0.0388) (0.0226) (0.0484) (0.0378) (0.0209)
UEBMI Class A −0.375 −4.194*** −2.997*** −0.401 −4.675*** −2.628***
(0.378) (0.532) (0.188) (0.363) (0.541) (0.184)
Generic −0.449 −0.668 5.293*** 0.0458 −1.395*** 1.954***
(0.402) (0.428) (0.302) (0.517) (0.499) (0.596)
q1 −0.0880 −1.350*** 0.0155 −0.0778 −1.418*** 0.0220
(0.0886) (0.105) (0.0183) (0.0852) (0.104) (0.0169)
q2 −0.113 −2.023*** −0.0361* −0.123 −2.074*** −0.0240
(0.0843) (0.0928) (0.0206) (0.0994) (0.0921) (0.0191)
q3 −0.209** −0.475*** 0.0857*** −0.166* −0.491*** 0.0869***
(0.0967) (0.0784) (0.0177) (0.0961) (0.0758) (0.0163)
Quarter Yes Yes Yes Yes Yes Yes
Constant 2.798*** 12.19*** 3.230*** 0.330 12.09*** 10.59***
(0.605) (0.765) (0.382) (1.970) (0.741) (1.206)
AR2 0.5917 0.9900 0.1887 0.7307 0.7531 0.0193
Hansen test 0.7091 0.1428 0.0564 0.7902 0.3099 0.1677
Observations 462 815 3,865 462 815 3,865

Note: UEBMI, Urban Employees’ Basic Medical Insurance. *p < 0.1, **p < 0.05, and ***p < 0.01.