Parallel imports are genuine products brought into a country without the authorization of the copyright, patent, or trademark owner. Countries vary considerably in their legal treatment of parallel imports, as determined by their choice of exhaustion doctrine. A new model analyzes parallel...

The growth of agricultural productivity is widely believed to be low. But this study finds the productivity rate in agriculture to be higher than that in manufacturing, both on average and for groups of countries at different stages of development. This suggests that a large agricultural sector...