Hernstein and Murray (1994) famously argued that the division of labor in modern society is determined by individual differences in cognitive ability. This paper shows that differences in cognitive ability can also determine the division of labor in poor urban areas. We estimate the effect of IQ...

Fluctuations in aggregate crime rates contrary to recent shifts in the age distribution of the U.S. population have cast doubt on the predictive power of the age-crime hypothesis. By examining a longer time horizon, back to the early 1930s,, we show that the percentage of the young population is...

Fluctuations in aggregate crime rates contrary to recent shifts in the age distribution of the U.S. population have cast doubt on the predictive power of the age–crime hypothesis. By examining a longer time horizon, back to the early 1930s, we show that the percentage of the young population...

We look at alternative methods to correct a downward bias in half-life estimates of relative stock prices among the G7 countries. We compare a grid-[alpha] median-unbiased method and a recursive mean adjustment method.