It is demonstrated that entropy is a useful measure for examining industrial diversity either among regions or for a particular region over time. Using the entropy method, employment diversity indices are computed for the 50 states and the district of Columbia for the ten‐year period from 1972...

The desire to understand the mechanisms of market information integration motivates this study. Large sample experimental prediction markets with varying feedback mechanisms afforded the study of aggregate and individual's actions. Markets without feedback demonstrated information collection by...