This paper traces the 11,000 year evolution of infrastructure systems during major periods of innovation, expansion and diffusion. Throughout history, the key role of the State is self-evident. Private sector involvement has waxed and waned over millennia, although at times it has been pivotal...

This paper considers a dynamic model of the evolution of open source software projects, focusing on the evolution of quality, contributing programmers, and users who contribute customer support to other users. Programmers who have used open source software are motivated by reciprocal altruism to...

In fiscal interaction, a policy is evolutionarily stable if, once adopted by all governments, jurisdictions that deviate from it fare worse than those that stick to it. Evolutionary stability is the appropriate solution concept for models of imitative learning (policy mimicking). We show that...

That individuals contribute in social dilemma interactions even when contributing is costly is a well-established observation in the experimental literature. Since a contributor is always strictly worse off than a non-contributor the question is raised if an intrinsic motivation to contribute...

Corporate success stories often resemble a snowball. We show how initial luck in hiring talented people, the resulting technological advantage, superior corporate culture, and statusseeking by workers and by consumers can make small initial differences generate large differences over time.

We consider the evolution of preferences when trade occurs between two countries. We show that if one country is much larger than the other, its preferences can eventually take over the preferences of the second country. This result may provide an explanation of why small countries sometimes...

Individual leaders have been central to the transformation of political institutions, organizations and many instances of social and economic reform. Why are some leaders able to take advantage of opportunities to successfully catalyze large-scale change while others fail? In this paper we argue...

Recent research has highlighted social image and identity concerns as factors that influence economic decisions. Given that an individual’s choice of employment may be important for their social image, we consider a model of worker sorting into the mission-oriented or private sector with...

The paper studies whether a drought in 1788 affected the outbreak of peasant revolts during the French Revolution. I construct a community-level data set with information on local drought severity and peasant uprisings in 1789. Results indicate that those more affected by the drought more often...

The determinants of portfolio choice have been studied extensively in the field of household finance. In this paper we study the determinants of the decision to hold risky assets based on a novel dataset of German bank data. Our primary focus is the question whether East Germans differ in their...