What drives the long-term demand for mineral commodities? This paper provides empirical evidence on the long-run demand for mineral commodities since 1840. I extend the partial adjustment model to account for country-specific structures and technological change. I find that a one percent...

Earlier work has shown that procrastination can be explained by quasihyperbolic discounting. We present a model of effort choice over time that shifts the focus away from completion to performance on a single task. We show that quasi-hyperbolic discounting is detrimental for performance. More...

This paper investigates the impact of game presentation dependent on ethnical affiliation. Two games representing the same logical and strategical problem are introduced. Presented games are continuous prisoner's dilemma games where decision makers can choose an individual level of cooperation...

This paper considers the interplay of job assignments with the intrinsic and extrinsic motivation of an agent. Job assignments influence the self confidence of the agent, and thereby his intrinsic motivation. Monetary reward allow the principal to complement intrinsic motivation with extrinsic...

Several empirical findings have challenged the traditional view on the trade-off between risk and incentives. By combining risk aversion and limited liability in a standard principal-agent model the empirical puzzle ont hepositive relationship between risk and incentives can be explained....