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Abstract
This paper examines the mainframe computer market from 1985–1991 and attempts to identify the types of buyers that demand particular computer features, such as speed and memory. To identify these buyers, demand for computer characteristics is estimated using a demand model based on Rosen (1974). Through these demand estimates we are able to show that the advent of on-line transactions processing was pushing the demand for computer speed and memory to some extent. However, beyond this specialized application, only a few industries seemed to be demanding the newest technology, while the majority of buyers continued to buy small mainframes throughout the sample period.