In this age of international terrorism and international economic contagion, it is clear that globalization in its broadest sense - i.e., the breaking down of barriers - is often a double-edged sword. The world economy of the early twenty-first century offers substantial growth potential and...

A new model for time-varying spatial dependencies is introduced. It forms an extension to the popular spatial lag model and can be estimated conveniently by maximum likelihood. The spatial dependence parameter is assumed to follow a generalized autoregressive score (GAS) process. The theoretical...