Height trends since World War II are analyzed using the most recent NHANES survey released in 2006. After declining for about a generation, the height of adult white men and women began to increase among the birth cohorts of c. 1975-1986, i.e., those who reached adulthood within the past decade...

The official unemployment rate has become an inadequate measure of labor market conditions. This poses a major challenge for basic research as well as for the formulation of adequate economic policy. We propose a new definition of the unemployment rate by weighing part-time workers with 62.5%,...

Multicollinearity, especially in combination with errors-in-variables, can increase the likelihood of a Type-I error by inflating the value of the estimated coefficients by more than it magnifies their standard errors, thereby increasing the likelihood of obtaining statistically significant...