International diffusion and intellectual property rights: An empirical analysis

Does a stronger intellectual property rights regime lead to the faster diffusion of new products and technology? While there is a presumption that this is the case, our analysis of data on the international release patterns of Hollywood movies suggests a more complex story: although moderate standards of IPR encourage the spread of movies, either very weak or very strong property rights tend to slow the speed with which American movies are released abroad. This empirical finding is robust to a wide variety of specifications. Overall, it appears that while some recognition of IPR may encourage diffusion, very strong IPR may actually retard the speed of diffusion.