There is a well-established negative gradient between economic status and crime, but its underlying causal mechanisms are not well understood. We use data on four Swedish lotteries matched to data on criminal convictions to gauge the causal effect of financial windfalls on player's own crime and...

Standard methods to assess the statistical quality of econometric models implicitly assume there is only one person in the world, namely the forecaster with her model(s), and that there exists an objective and independent reality to which the model predictions may be compared. However, on many...

An avalanche of empirical studies has addressed the validity of the rank-size rule (or Zipf's law) in a multi-city context in many countries. City size in most countries seems to obey Zipf's law, but the question under which conditions (e.g. sample size, spatial scale) this 'law' holds remained...