We study the effect of the fragmentation of intellectual property rights on optimal patent design. The major finding is that when several complementary innovative components must be assembled to operate a new technology, the patentability requirements should be stronger than in the case of...

We study the effect of the fragmentation of intellectual property rights on optimal patent design. The major finding is that when several complementary innovative components must be assembled to operate a new technology, the patentability requirements should be stronger than in the case of...

We investigate the conditions for the desirability of exclusive intellectual property rights for innovators, as opposed to weak rights allowing for some degree of imitation and ex-post competition. The comparison between the two alternatives reduces to a specific "ratio test," which suggests...

We study the effect of the fragmentation of intellectual property rights on optimal patent design. The major finding is that when several complementary innovative components must be assembled to operate a new technology, the patentability requirements should be stronger than in the case of...

Two distinct theories of patents - the reward theory and the contract theory - are customarily adopted by the courts to justify the patent system. The reward theory maintains that the function of the patent system is to remunerate successful innovators so as to encourage R&D effort. In contrast,...

In this paper we look at patents as alternative to trade secrets. We disentangle the disclosure motive for patent protection from the traditional reward motive by adjusting the level of patent protection so as to make the innovator just indifferent between patenting and keeping the innovation...