Estimations of generic drug entry in Brazil using count ... - EPGE/FGV
Estimations of generic drug entry in Brazil using count ... - EPGE/FGV
Estimations of generic drug entry in Brazil using count ... - EPGE/FGV
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#Generic Drug EntrantsTABLE 5Marg<strong>in</strong>al Effects <strong>in</strong> Count Data Regressions and Diagnostic TestsPOISSON NB2 NB1 Generalized NB ZIP ZINBdy/dx z dy/dx z dy/dx z dy/dx z dy/dx z dy/dx zRevenue Branded 2.5500E-09 0.00 2.3100E-09 3.51 2.4000E-09 4.99 2.3500E-09 1.59 1.8300E-09 1.75 2.3500E-09 1.59Revenue Drug -4.2700E-10 0.00 -3.5200E-10 -3.85 -4.6400E-10 -5.01 -5.2000E-10 -0.86 -3.7000E-10 -0.98 -5.2000E-10 -0.86Revenue Drug X Form 5.9800E-10 0.00 7.1900E-10 5.32 6.9200E-10 5.65 8.2900E-10 0.97 8.4600E-10 1.80 8.2900E-10 0.97Revenue Class -5.1600E-10 0.00 -6.5000E-10 -6.22 -5.2900E-10 -6.22 -7.7800E-10 -1.12 -7.1400E-10 -1.76 -7.7800E-10 -1.12#Firms <strong>in</strong> Class 0.002542 0.00 0.002170 5.58 0.002223 5.17 0.003646 4.16 0.002587 4.87 0.003646 4.16HHI ATC-3 Class 0.000011 0.13 0.000009 1.08 0.000010 1.00 0.000028 1.41 0.000026 2.08 0.000028 1.41HHI Drug -0.000038 0.00 -0.000028 -4.10 -0.000036 -4.68 -0.000059 -3.63 -0.000045 -4.43 -0.000059 -3.63Age <strong>of</strong> Pioneer Drug 0.003151 0.00 0.002628 6.77 0.003033 7.86 0.001371 1.54 0.000697 1.31 0.001371 1.54Revenue Phyto. Class 0.000000 0.10 0.000000 -0.30 0.000000 -0.02 0.000000 -0.32 0.000000 -1.15 0.000000 -0.32Year 2001 -0.044834 0.00 -0.013116 -0.74 -0.020775 -1.14 -0.091294 -2.80 -0.090810 -5.62 -0.091294 -2.80Year 2002 -0.036314 0.00 -0.011542 -0.66 -0.006247 -0.33 -0.083854 -2.62 -0.076659 -4.70 -0.083854 -2.62Year 2003 -0.070530 0.00 -0.042956 -2.85 -0.050606 -3.21 -0.144619 -5.07 -0.119251 -7.82 -0.144619 -5.07Year 2004 -0.046518 0.00 -0.007738 -0.43 -0.027643 -1.62 -0.092332 -2.97 -0.090195 -5.81 -0.092332 -2.97Year 2005 -0.053280 0.00 0.002648 0.14 -0.045007 -2.85 -0.079049 -2.46 -0.086238 -5.47 -0.079049 -2.46Year 2006 -0.080427 0.00 -0.045358 -3.02 -0.071338 -4.94 -0.138410 -4.80 -0.115471 -7.49 -0.138410 -4.80Year 2007 -0.106151 0.00 -0.073255 -5.55 -0.080822 -5.79 -0.196456 -7.34 -0.156614 -10.35 -0.196456 -7.34# Non-<strong>generic</strong> Brands 0.010297 0.00 0.012394 13.38 0.011123 15.09 0.113682 13.40 0.091232 10.11 0.113682 13.40#Drugs <strong>in</strong> ATC-3 Class#Drugs <strong>in</strong> Class X Form0.012191 0.00 0.010669 4.64 0.014340 5.72 0.015904 3.09 0.009576 3.14 0.015904 3.09-0.004435 0.00 -0.003299 -2.65 -0.006070 -4.44 -0.002963 -1.10 -0.001115 -0.70 -0.002963 -1.10# Extended Release Brands-0.025865 0.00 -0.006449 -1.27 -0.021914 -4.17 -0.024260 -2.67 -0.015576 -3.26 -0.024260 -2.67#Own-<strong>generic</strong>s 0.101858 0.00 0.091026 4.44 0.116086 6.32 0.147245 4.02 0.076799 4.13 0.147245 4.02#Brands <strong>of</strong> Pioneer iDrug -0.036717 0.00 -0.008695 -1.02 -0.043718 -6.78 -0.036380 -2.76 -0.021128 -3.26 -0.036380 -2.76Revenue <strong>of</strong> Pioneer DrugShare Own-<strong>generic</strong>s Drug-7.6000E-12 0.99 7.7400E-10 0.91 1.2900E-10 0.21 2.4500E-09 1.17 1.2300E-09 1.24 2.4500E-09 1.170.194513 0.12 0.125485 0.60 0.263335 1.87 0.130662 0.36 0.025785 0.14 0.130662 0.36Share Own-<strong>generic</strong>s Class0.608698 0.01 0.087520 0.26 0.446583 1.63 0.437705 0.72 0.328609 0.96 0.437705 0.72AIC 8420.67 7487.27 7399.259 7330.563 7131.444 6873.10BIC 8585.40 7665.721 7570.85 7515.88 7316.762 7072.1430
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