In light of the interest in axiomatic models of decision making in recent years, one is led to ask, in what ways do axiomatic derivations advance positive economics? If economists are interested in predicting how people behave, without a pretense to change individual decision making, how can...

The article tries to answer an old question of economic theory and institutional economics: How do trade unions fit into a market economy? Are they a constitutive element of the market order or: are they a source of irritation and disruption?