The past decade has seen a wealth of research on decision making, much of it not only useful but also fascinating to read. At the same time, a growing chorus has noted that business executives, in particular, are largely impervious to its lessons. They seem unable to apply those lessons, or perhaps uninterested in doing so. Advances in our understanding of decision making have not been matched by improvements in practice.

A version of this article appeared in the November 2013 issue of Harvard Business Review.