2004’管理科学与工程讲座02
题 目：Evaluations of Long- and Short-Run Efficiencies of Digital vs. Physical Product “Dot Com” Companies
主讲人：Honghui Deng
MSIS Department
Red McCombs School of Business
The University of Texas at Austin
时 间：2004.7.6 PM 2：00
地 点：光华楼201会议室
摘 要：
This paper applies DEA (Data Envelopment Analysis) to determine relative efficiencies between internet dot com companies that produce only physical products and those that produce only digital products. To allow for the fact that the latter are relatively inexperienced, a distinction is made between long- and short-run efficiencies and inefficiencies, with a finding of no statistically significant difference in the short run but digital product companies are significantly more efficient in the long run. A new way of distinguishing between long-run and short-run performances is utilized that avoids the need for identifying the time periods associated with long-run vs. short-run efficiencies and inefficiencies. In place of “time,” this paper utilizes differences in the “properties” that economic theory associates with long-run and short-run performances.
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