One project, focussing on behavioural economics uses panel data on smoking for the first time and will lead to two major outputs. Firstly, a non-technical review of the behavioural economics literature aimed at policy makers. This review will focus on the policy implications of different theories and explore the implications of different behavioural biases for different forms of intervention, including more 'traditional' measures such as taxation and regulation, as well as the now-popular idea of 'nudges'. Secondly, the research will contribute empirical evidence to this literature through a quantitative study of the relationship between tobacco taxes and smokers' happiness in the UK. This is based on the idea of 'time inconsistency' from behavioural economics. There is evidence from North America that higher taxes improve smoker happiness, which may be because smokers value taxes as a commitment device helping them to quit. We will provide the first UK evidence using panel data and extend the analysis to consider the effect of the smoking ban.