Proponents of hospital consolidation claim that mergers lead to significant cost savings, but there is little systematic evidence backing these claims. For a large sample of hospital mergers between 2000 and 2010, I estimate difference-in-differences models that compare cost trends at acquired hospitals to cost trends at hospitals whose ownership did not change. I find evidence of economically ...

Substantial economies of scale in the production of information goods give reasons for considering the outsourcing of the production. The trade in information goods – resulting from the outsourcing of the production – is a typical transaction which can be analysed using transaction cost theory. Taking into account the particular characteristics of information goods and the process of delivering...

this study was conducted to evaluate the share of cost factors affecting on final cost of broiler live weight per kilogram in tehran province. data were collected through questionnaires. farms were divided to three cost ranges: less than 35,000, between 35,000 to 40,000, and over 40000 rails based on production cost per kg of live weight. in this study, water and additives, staff, vaccines, tra...

This paper deals with the problem of integrating noncyclical preventive maintenance and tactical production planning for a single machine. We are given a set of products that must be produced in lots during a specified finite planning horizon. The maintenance policy suggests possible preventive replacements at the beginning of each production planning period, and minimal repair at machine failu...

Volker Weispfenning and his group in Passau have had a long interest in computer algebra. In this talk, REDUCE, one of the algebra programs they use, will be discussed. The development of this program began over forty years ago. We shall discuss the design decisions that have influenced its long-term survival, and the way in which the program has evolved with time.

value stream mapping because of being able to understand process bottlenecks, as one of the most common tools for analyzing, identifying and eliminating various losses in operational and support processes are used. on the other hand, inventory management, precise control entry and exit of goods, accurate and timely information about the inventories status and planning, reduce product maintenanc...