It is well known that, under some conditions, tests are asymptotically equivalent, and are optimal in the sense that the local power of these tests are equal to the maximum that can be achieved. However, in most practical situations, the density function f is unknown.

In this paper I explore the concept of innovation. The aim is to bring to the fore the importance of learned habits on the motivation to innovate. Innovation is a learning process which results in a new product, a new process, a new movement, a new organisation or a new source of raw materials....

The use of the figure of Robinson Crusoe as an exemplar of rational economic man may be viewed as of no significance whatsoever, or as very significant in the creation of the meaning of the economic agent. This paper discusses two alternative views of feminist economists. Some feminist...