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Zangwill (Zangwill, W. I. 1987. From EOQ towards ZI. Management Sci. 33 1209–1223.) has constructed an example which purports to show that reducing set up costs can increase total cost. We show that this happened as a result of restricting the policies to be of a “greedy” nature. The...
This study, based on detailed data obtained from carefully selected samples of about 200 Japanese and American firms, seems to be the first comprehensive empirical investigation of the differences between Japan and the United States in innovation cost and time. Whereas the Japanese have...
A variant of Banker and Morey's (Banker, R. D., R. C. Morey. 1986. The use of categorical variables in data envelopment analysis. Management Sci. 32 (12, December) 1613–1627.) DEA model for controllable ordinal outputs. As opposed to the original model, this version allows the comparison of a...
Gerchak's note further elaborates on an example in my paper “From EOQ Towards ZI” (Zangwill, W. I. 1987. From EOQ towards ZI. Management Sci. 33 1209–1223.). My example is correct. His example is correct also, and I was aware of examples of his type when I wrote the paper as were the...
The paper presents an analysis of invention performance, as measured by patenting activities, of six countries (France, Italy, Japan, United Kingdom, USSR, West Germany) relative to the United States for 41 SIC industries over the past 20 years. It turns out that non-U.S. countries as a group...
In the implementation of an organizational innovation, managers are usually presumed to influence the extent to which the innovation is adopted and used by their subordinates. However, the findings presented in this paper suggest that the managerial influence is not equally perceived by all...
This paper contains numerous extensions and refinements to event graphs which were recently introduced by Schruben for simulation modelling. These new results are integrated with Schruben's work to present a complete description of event graphs and their analysis. A (simple) flexible...
The study of organizational adoption of administrative innovations has been generally guided by the imitation hypothesis. This hypothesis states that, within a relevant population of firms, an innovation is first adopted by a select few innovators who communicate and influence others to adopt it...
Erratum to Sharp Bounds and Simple Approximations for the Erlang Delay and Loss Formulas (Vol. 34, No. 8 (August 1988), pp. 959–972.)
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