We model a firm's decisions about product innovation, focusing on the extent to which features should be improved or changed in the succession of models that comprise a life cycle. We show that the structure of the internal and external environment in which a firm operates suggests when to...

This paper explores the question of whether ethical sourcing and disclosure of supply chain sources is linked to competitiveness. We model competition between two firms, both of which produce the same consumer good. One sources ethically and the second does not, and market share is affected by...

Over the past 20 years, the topic of order acceptance has attracted considerable attention from those who study scheduling and those who practice it. In a firm that strives to align its functions so that profit is maximized, the coordination of capacity with demand may require that business...

This paper presents a model of lead-time policies for a production system, such as an integrated steel mill, in which the bottleneck process requires a minimum batch size. An accurate understanding of internal lead-time quotations is necessary for making good customer delivery-date promises,...

Teaching Innovations in Economics presents findings from the Teaching Innovations Program (TIP) funded by the National Science Foundation. The six-year project engaged economics professors in the use of interactive teaching in undergraduate economics courses. Each chapter offers an insightful...

This paper is motivated by the claim that promotion probabilities are lower for women than men. Using data from the 1984 and 1989 National Longitudinal Youth Surveys, this paper tests this claim and two related hypotheses concerning training and ability. It is found that females are less likely...