Efficient coordination is a major source of efficiency gains. We study in an experimental coordination game with 718 children and teenagers, aged 9 to 18 years, the strategies played in pre-adulthood. We find no robust age effects in the aggregate, but see that smaller group sizes and larger...

In an experiment on the large language model GPT-4o, a supplier always makes a higher profit if it replaces uniform contract terms with a set of terms between which the customer may choose. The extra profit results from price discrimination. There is a first order and a second order effect. The...

Large Language Models (LLMs) have the potential to profoundly transform and enrich experimental economic research. We propose a new software framework, "alter_ego", which makes it easy to design experiments between LLMs and to integrate LLMs into oTree-based experiments with human subjects. Our...

We study the developmental roots of cooperation in 929 young children, aged 3 to 6. In a unified experimental framework, we examine pre-registered hypotheses about which of three fundamental pillars of human cooperation - direct reciprocity, indirect reciprocity, and third-party punishment -...

This study shows that civilians' behavior can be severely affected by territorial control by an insurgent group, and that these effects can persist after the government regains control and the occupation ends. I consider a framework of civilian behavior under insurgent rule, where civilians have...

The German Constitutional Court has powers that are no weaker than the powers of the US Supreme Court. Justices are openly selected by the political parties. Nonetheless, public and professional perception are strikingly different. Justices at the German court are not believed to be guided by...

We report on our test of the Large Language Model (LLM) ChatGPT (GPT) as a tool for generating evidence of the ordinary meaning of statutory terms, We explain why the most useful evidence for interpretation involves a distribution of replies rather than only what GPT regards as the single "best"...

Why do people punish experienced unfairness if it induces costs for both the punisher and punished person(s) without any direct material benefits for the punisher? Economic theories of fairness propose that punishers experience disutility from disadvantageous inequality and punish in order to...

The paper analyses the role of national central banks (NCBs) in the governance of the European System of Central Banks (ESCB), NCBs are the owners of the European Central Bank (ECB), and their governors dominate the ECB's Governing Council, but in monetary policy operations, NCBs are...

For overlapping-generations models with multiple assets and without labour, welfare assessments of equilibrium allocations depend on whether the certainty equivalents of the one-period-ahead marginal rates of return on assets that are held are larger or smaller than the population growth rate....