Introduction -- Literature Review -- An Overview of Recreational Drug Consumption in Australia -- Modelling Consumption of Individual Drugs -- Modelling Multiple Drug Use using a Multivariate Approach -- Modelling Alcohol Consumption by Levels using an Ordered Generalised Extreme Value (OGEV)...

We investigate the welfare effect of increasing competition in an anonymous two-sided matching market, where matched pairs play an infinitely repeated Prisoner's Dilemma. Higher matching efficiency is usually considered detrimental as it creates stronger incentives for defection. We point out,...