3136	 Price Performance Patterns of U.S. Computer Systems	 Econometric models of the U.S. computer market have been developed to study the relationships between system price and hardware performance. Single measures of price performance such as Grosch s Law are shown to be so over simplified as to be meaningless. Multiple-regression models predicting system cost as a function of several hardware characteristics do however reveal a market dichotomy. On one hand there exists a stable price predictable market for larger general purpose computer systems. The other market is the developing one for small business computer systems a market which is relatively unstable with low price predictability. Price performance Grosch s law U.S. computer market
