The number of drugs approved by the FDA for treating cancer has increased substantially during the last 40 years. Moreover, cancer drug innovation has been accelerating: more than 8 times as many new cancer drugs were approved during 2005-2015 as were approved during 1975-1985 (66 vs. 8). During...

Policies offering material incentives for Covid-19 vaccination have been widely used around the world as countries pursue the pressing objective of boosting immunity. This paper reports an experiment in China aimed at testing the effects of such interventions on vaccination willingness. We...