I test the effect of multiple pivotal players on unfair choices in a setup with a leader and two followers deciding on whether to expropriate the payoff of a group member. Comparing unanimity decisions to individual decisions within the group, I find that leaders are fairer in the unanimity rule...

Invasive species are one of the main reasons for the loss of biodiversity. Therefore, national strategies are developed to deal with biological invasions. Economic evaluation as a tool of policy advice has to take into account three challenges: (1) reflecting ecological knowledge, which is...

Why did evolution not give us a utility function that is offspring alone? Why do we care intrinsically about other outcomes, such as food, and what determines the intensity of such preferences? A common view is that such other outcomes enhance fitness and the intensity of our preference for a...

The complexity that we observe in nature can often be explained in terms of cooperative behavior. For example, the major transitions of evolution required the emergence of cooperation among the lower-level units of selection, which led to specialization through division-of-labor ultimately...

The recent debate about the value of Darwinism as a source of ontological foundations for evolutionary economics reduces to a disagreement about whether or not the causal logic of Darwinism applies to economic evolution. However, this logic has not yet been fully specified. While the explanantia...

Network effects play a central role in many information goods industries including electronics and software. So far, however, their role in shaping biotechnology innovation has largely been overlooked. This paper presents data documenting the presence of strong network effects in stem cell...