Commodity price increases associated with the entry of China, India, and other countries into the world economy have led to increased pressure on common-property renewable natural resources. The problem is particularly worrisome for economies that obtain a large share of their income from the...

In this paper, we propose an easy-to-use yet comprehensive model for a system of cointegrated commodity prices. While retaining the exponential affine structure of previous approaches, our model allows for an arbitrary number of cointegration relationships. We show that the cointegration...