Table 1 Description of variables
Variable | Description |
|---|---|
Successful patent challenger | = 1 if a generic manufacturer, from 2015 to 2019, granted a marketing approval with 9-month exclusivity after challenging a patent and obtaining favorable decision at a court |
Aggressive patent challenger | = 1 if a generic manufacturer, from 2015 to 2019, achieved 4 and more successful patent challenges |
Innovative | = 1 if a generic manufacturer designated as innovative pharmaceutical manufacturers by the ministry of health as of 2019 |
New drug | = 1 if a generic manufacturer granted a marketing approval for new drug or modified new drug as of 2019 |
Sales | Total sales of a manufacturer in 2019 (million Korean Won) |
Employees | Total employees of a manufacturer in 2019 (full time employees) |
Reimbursed drugs | Total number of reimbursed drugs under the National Health Insurance that a manufacturer granted marketing approval as of 2019 |