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Peer reviewedSullivan, Edward J.; Weithers, Timothy M. – Journal of Economic Education, 1991
Observes that, before 1973, determining a valuation formula for option prices was an elusive goal of financial economics. Discusses Louis Bachelier's early twentieth-century work on the problem. Notes that Bachelier derived a normal distribution for stock price movements by modeling price changes in specific way. Reviews Bachelier's option pricing…
Descriptors: Cost Indexes, Economic Research, Economics Education, Educational History
Cohen, Elaine; Young, Margo – Optical Information Systems, 1986
Describes a model enumerating cost factors for comparing costs for paper, online, and CD-ROM indexes and abstracts. The model is applied to start-up and annual costs, and to the cost of storing and providing access to ERIC, Applied Science and Fisheries Abstracts, and Excerpta Medica, based on anticipated academic library usage. (MBR)
Descriptors: Abstracts, Academic Libraries, Comparative Analysis, Cost Effectiveness
