Computation is making its way into the mainstream of natural and social science research by fits and starts. “Computational science,” once a toolkit, is emerging as a fundamentally new approach to exploration and hypothesis formation as well as analysis. It is not yet clear, however, just...

An important frontier of business cycle theorising is the 'time-to-build' tradition that lies at the heart of Real Business Cycle theory. Kydland and Prescott (1982) did not acknowledge the rich tradition of 'time-to-build' business cycle theorising - except in a passing, non-scholarly,...

In dealing with emergent phenomena, a common task is to identify useful descriptions of them in terms of the underlying atomic processes, and to extract enough computational content from these descriptions to enable predictions to be made. Generally, the underlying atomic processes are quite...