Smokers not only choose the number of cigarettes to smoke in any given period on the basis of price, they also choose the intensity with which to smoke - that is, how much nicotine to inhale. The possibility that quantity-reducing tax policies may be mitigated, or even completely offset, by...

This paper describes a model and resulting simulations to assess the appropriate age structure of intervention in childhood on the theme: should we intervene early or late? We use asset theory approaches to construct a general model of state investment whose aim is to reduce inequality in human...

This paper is concerned with the relationship between class size and the student outcome – length of time in post-compulsory schooling. Research on this topic has been problematic partly because omitted unobservables, like parents’ incomes and education levels, are likely to be correlated...

This paper provides a brief review of the economic rationale for investing in early childhood. It discusses the optimal timing of intervention, with reference to recent work in developmental neuroscience, and asks how early is early? It motivates the need for early intervention by providing an...

This paper examines impacts of childhood health on SES outcomes observed during adulthood- levels and trajectories of education, family income, household wealth, individual earnings and labor supply. The analysis is conducted using data that collects these SES measures in a panel who were...

This articleargues the crucialstage to the success or failure of a peace agreement is the implementation stagebecause it is at this stagethat the agreement becomes subject to politicalforces which havenot been involved in the negotiation process.It builds on Frensley’sresearch (1998)that the...

This paper develops the method of local instrumental variables for mod- els with multiple, unordered treatments when treatment choice is determined by a nonparametric version of the multinomial choice model. Responses to interventions are permitted to be heterogeneous in a general way and agents...