Oversneering At `Overstated' Productivity Gains

Regarding your article "The `revolution' in U.S. productivity may be overstated" (Economic Trends, Aug. 29), the economist David A. Wyss chooses to view his personal computer as a replacement for his $129 typewriter and not as a replacement for the $3 million IBM 7094 mainframe. If all the 7094 mainframe did was crunch numbers, then couldn't it be viewed as mostly a

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