Managers of retail chains who seek to add new stores or close existing ones need to know the net impact of a store's opening/closure on the overall chain performance. This requires inferring the extent to which each store generates incremental sales as opposed to competing with other stores...

Entrepreneurs, even more than employees, tend to locate in regions in which they have deep roots ("home" regions). Here, we examine the performance implications of these choices. Whereas one might expect entrepreneurs to perform better in these regions because of their richer endowments of...

This paper presents a method for solving a system of first order linear differential equations with constant coefficients when the elements of the forcing vector are step functions. The analysis presented in the text has been programmed for use in the computer simulation of linear continuous...

The agglomeration of the automobile industry around Detroit, Michigan is explained using a theory in which disagreements lead employees of incumbent firms to found spinoffs in the same industry. Predictions of the theory concerning entry and firm survival are tested using data on the origin,...