This paper reviews the extent to which policy interventions can affect risky behaviours such as smoking, drinking and diet. The justification for such intervention is typically a market failure, broadly defined. The types of market failure typically encountered are discussed. First and second...

Smoking, low physical activity and frequent alcohol consumption may have substantial health risks in terms of disease, quality of life and mortality. Understanding inequality in relation to these behaviours among older people is important in the context of a rapidly ageing population. In this...

There is a well-established debate between Heckman sample selection and two-part models in health econometrics, particularly when no obvious exclusion restrictions are available. Most of this debate has focussed on the application of these models to health care expenditure. This paper revisits...