Figure 3 R&D Investment in the Flexible Regime where P;(t) is the probability that at time ¢t the most advanced innovation is exactly 7. In
Related Figures (2)
incentive to select a law that leads to either overinvestment or underinvestment in R&D. Notice that the law ac enters (39) twice. The law has a direct effect on welfare: it multiplies the term in square brackets. Also, the law has an indirect effect through Z; in particular, recall that Z is increasing in ac.°*