Demographic change can have profound effects on a country’s economy and public finances. These effects generally manifest themselves over multi-decade periods, but the deterioration in many countries’ public finances and concerns about their underlying growth potential have recently brought demographic issues to the fore. Against this background, this article reviews the medium-term demographic...

BATF firearms traces are a tool for prosecution of individual crimes, with potential benefits in using the tracing data for law enforcement. There are, however, severe limitations on the utility of those data for criminological analysis and public policymaking aimed at reducing homicides, including the minimal number of trace attempts and successes, the rules for excluding guns and efforts to t...

Bayesian statistics offers an alternative to classical (frequentist) statistics. It is distinguished by its use of probability distributions to describe uncertain quantities, what leads to elegant solutions to many difficult statistical problems. Although Bayesian demography, like Bayesian statistics more generally, is around 250 years old, only recently has it begun to flourish. The aim of thi...