Economic data are collected at various frequencies but econometric estimation typically uses the coarsest frequency. This article develops a Gibbs sampler for estimating vector autoregression (VAR) models with mixed and irregularly sampled data. The Gibbs sampler allows efficient likelihood inference and uses simple conjugate posteriors even in highdimensional parameter spaces, avoiding a no…

Inspired by Cairncross's most recent Economist survey, this bold book argues that we've grossly underestimated the power of the Internet to change the way companies behave. We stand at the brink of a period of fundamental organizational change from which will emerge a new type of company--one that will require a new set of leadership and management skills to run it. The Company of the Future as…