We look at the links between the Digit Ratio - the ratio of the length of the index finger to the length of the ring finger – for both right and left hands, and giving in a Dictator Game. Unlike previous studies with exclusively Caucasian subjects, we recruited a large, ethnically diverse...

We analyze the contracting structure in a moral hazard setting with several agents where output is produced jointly and is the only contractible variable. Since the salary of each agent is a function of all agents efforts, a positive externality arises between them. This externality is not...

We propose a model in which parents have a subjective belief about the impact of their investment on the early skill formation of their children. This subjective belief is determined in part by locus of control (LOC), i.e., the extent to which individuals believe that their actions can influence...

In this paper the author argues that social scientists need to do more to provide policy-relevant research. Rapid technological and economic change raise new issues about how policy should adjust that are not adequately addressed by older and narrower approaches. The author suggests two ways in...

The Lisbon summit of the European Council in March 2000 declared the number of people living in poverty and social exclusion in the European Union to be unacceptable, and called for steps to tackle the issue, beginning with the setting of targets for particular indicators. The targets suggested...

Since climate change threatens human wellbeing across the globe and into the future, we require a concept of wellbeing that encompasses an equivalent ambit. This paper argues that only a concept of human need can do the work required. It compares need theory with three alternative approaches....

Why do over 20% of children die in some poor countries, while in others only 2% die? We examine this question using survey data covering 278,000 children in 45 low-income countries. We find that parents’ education and a mother’s propensity to seek out modern healthcare are empirically...

Many cultural products have the same nonrival nature as scientific knowledge. They therefore face identical difficulties in creation and dissemination. One traditional view says market failure is endemic: societies tolerate monopolistic inefficiency in intellectual property (IP) protection to...

Necessary and sufficient conditions are derived for optimal saving in a stochastic neo-classical one-good world with discrete time. The usual technique of dynamic programming is replaced by classical variational and concavity arguments, modified to take account of conditions of measurability...