may foster cooperation through an entry mechanism, which leads to assortative selection of interaction partners, or an … exit mechanism, whereby the opportunity to leave the partnership can be used as a threat against free-riders. We examine … on provision only through the exit mechanism. Assortative selection of interaction partners seems to play a minor role in …

We use a dynamic oligopoly model of entry and exit with store-type differentiation to evaluate how entry regulations … regulations for the welfare of differentiated product industries with endogenous entry and exit. … demand, recover variable profits, and estimate entry costs and fixed costs by store type. Counterfactual policy experiments …

disequilibrium but little empirical research has examined firm entry and exit in this context. We redress this by modelling the … interrelationship between firm entry and exit in disequilibrium. Introducing a new methodology we investigate whether this … new-firm entry) while in overshoots competition induced by new firms (in particular strong displacement) helps restore …