Although increasing diversity at the national scale is a well-documented trend, substantial variation in patterns of … calculate panethnic (five-group) entropy index scores to measure the magnitude of diversity for nearly 11,000 census …-defined places. Our results indicate that while certain places reach their diversity peak in 1980 or 1990, they are few in number …

In this article I clarify the often muddled distinctions between uncertainty, difficulty, and complexity and show that … all three can enhance our understanding of institutional performance and design. To cope with uncertainty, institutions …