The present paper is structured around two main constructions, fixed points of functors and fibrations and sections of functors. Fixed points of functors are utilized to resolve problems of infinite regress that have recently appeared in economics. Fibrations and sections are utilized to model...

This note describes a worked-out example of the Dixit-Stiglitz model of product differentiation, generalized in two directions; career choice is endogenous and firms can produce many products

This paper contains a model of waste elimination through design. It argues for the importance of managing design complexity in improving cost, quality, variety, and time--to--market performance variables. Management of design complexity is identified with creation, choice, and application of...

This paper contains a model of waste elimination through design. It argues for the importance of managing design complexity in improving cost, quality, variety, and time--to--market performance variables. Management of design complexity is identified with creation, choice, and application of...