| 000 | 00435pab a2200157 454500 | ||
|---|---|---|---|
| 008 | 180718b2016 xxu||||| |||| 00| 0 eng d | ||
| 100 | _aGilchrist, Duncan S. | ||
| 245 | _aPatents as a spur to subsequent innovation? evidence from pharmaceuticals | ||
| 260 | _c2016 | ||
| 300 | _ap.189-221. | ||
| 362 | _aOct | ||
| 650 | _aDrugs | ||
| 650 | _aPatents | ||
| 773 | _aAmerican Economic Journal: Applied Economics | ||
| 909 | _a113181 | ||
| 999 |
_c113176 _d113176 |
||