In recent trade policy debates it is often argued that temporary protection stimulates innovation. This paper shows that the validity of the argument depends on the perceived credibility of protection policy. If it is suspected that temporary protection will be removed early should innovation...

Using a dynamic model of patent races for two sequential innovations, Scotchmer & Green (1990) compared the effect on R&D incentives of the two patent-issuing rules, first-to-invent and first-to-file, and found first-to-file more conducive to R&D. We show that their result depends on their...

We present a new model of dynamic Bertrand competition, where a quota is treated as an intertemporal constraint rather than as a capacity constraint as is common in the literature. The firm under a quota then can still vary the rates of exports over time provided that its total sales within the...

Host country governments often grant investment incentives to foreign firms locating in their territories. We show that such preferential treatment of foreign firms can facilitate transfer of foreign technology, induce entry by the local firm, and increase host country welfare. However, this...

Host country governments often grant tax holidays to foreign firms located in their territories. Although such preferential tax treatment appears to disadvantage local competitors who try to enter the new markets, tax holidays can actually facilitate entry by local firms. This procompetitive...