This essay argues that economic systems should be defined in terms of clusters of complementary institutions. To show how such an approach can be carried out, I use a cluster analysis technique and data on forty different economic institutions in OECD nations to isolate four quite different...

Research on processes of innovation has emphasised the role of (publicly funded) research institutions (RTOs) as well as the embeddedness of innovation procedures in a systemic context. This paper deals with the changing contribution of RTOs to innovation systems due to the emergence of a highly...

This paper presents a model of emergent class structure, in which a society inhabited by inherently identical households may be endogenously split into the rich bourgeoisie and the poor proletariat. For some parameter values, the model has no steady state where all households remain equally...

This paper presents a simple mathematical model that shows how economic inequality between social groups can arise and be maintained even when the only adaptive learning processes driving cultural evolution increases individual's economic gains. The key assumption is that human populations are...

We examine the persistence of monopolies in markets with innovations when the outcome of research is uncertain. We show that for low success probabilities of research, the incumbent can seldom preempt the potential entrant. Then the efficiency effect outweighs the replacement effect. It is vice...

We examine a situation where efforts on different tasks positively affect production but are not separately verifiable and where the manager (principal) and the worker (agent) have different ideas about how production should be carried out: agents prefer a less efficient way of production. We...

We model the sorting of medical students across medical occupations and identify a mechanism that explains the possibility of differential productivity across occupations. The model combines moral hazard and matching of physicians and occupations with pre-matching investments. In equilibrium...