new drug class
Total drug category use computed from NAMCS, used as regression weights
Log NAMCS based market size using population weights
Total approvals of non generics for NAMCS drug categories
Total approvals of new molecules for NAMCS drug categories
Log OECD market size using population weights
1960/1970 trend in log non generic approvals
1960/1970 trend in log new molecule approvals
1960/1970 trend in log non generic approvals, interacted with time period 2 (sim
1960/1970 trend in log new molecule approvals, interacted with time period 2 (si
Total approvals of all Rx drugs by drug category and time interval
Total approvals of non-generics
Total approvals of new molecules
Total approvals of generics
Log income-based market size using single-year age groups
Total drug category use, used as regression weights
Total drug category spending, used as regression weights
Log market size using population weights
Log of market size using cohort from five years earlier
Log market size using income weights
Log of insurance based market size
Life years lost by drug category and time interval
CRISP funding by drug category and time interval
One period lag of log non generic approvals
One period lag of log new molecule approvals
Two period lagged first difference of log non generic approvals
Two period lagged first difference of log new molecule approvals
Dummy equal to one if lagged non generic approvals equals zero
Dummy equal to one if lagged new molecule approvals equals zero
Dummy equal to one if two-period lagged first differnece of log non generic appr
Dummy equal to one if two-period lagged first difference of log new molecule app
One period lag of log income-based market size