The More the Merrier? Natural Resource Fragmentation and the Wealth of Nations
利用93个国家1980-2007年数据，发现给定资源总价值时，资源种类越多，人均增长越高，挑战了传统的资源诅咒观点。
We exploit differences in the number and distribution of natural resources to estimate the presence of a curse of natural resources on economic growth. Building on a sample of 93 developing and developed countries covering the years 1980 to 2007, we show that, given the value of the resource endowment, the higher the number of resources is, the higher is a country's per-capita growth. This finding is robust to the addition of all usual controls and to the splitting of the dataset into subsamples such as non-OECD or non-African countries only.