This paper describes a dynamic random effects econometric model from which inferences on earnings mobility may be made. It answers questions such as, given some initial level of observed earnings, what is the probability that an agent with certain characteristics will remain below a specified...

Almost universally, the Oaxaca (1973) decomposition is used to compare the outcomes between two discrete groups, e.g., black and white. In many applications, however, groups are not readily divided into discrete bins. The purpose of this paper is to extend the Oaxaca decomposition to examine...

Famously, John Snow attempted to convince a critical professional audience that public water supplied to South London residents by private companies was a principal vector for the transmission of cholera. The result has been called the sine qua non of the "epidemiological imagination," a...