Does the growth of creative industries within a city yield both agglomeration effects (Marshallian externalities) as well as spillovers to the rest of the economy (Jacobian externalities, related to the novel combinations that can occur in cities with diversifted economic activities)? Most of...

We show that when the researcher’s (observable but not contractible) contribution to innovation is crucial, a covenant not to compete (CNC) reduces e.ort and profits under both spot and relational contracts. Having no CNC allows the researcher to leave for a rival. This alleviates a commitment...