, on the other hand, that cost effectiveness in a competitive emission permit market could be affected by tacit collusion …

This paper presents a model of collusion in vertically differentiated industries where firms have the option to make … quality dimension and their beliefs satisfy a standard refinement, collusion is facilitated in the absence of brands. More … precisely, we show that if collusion is feasible with brands it is also feasible without them …

Collusion sustainability depends on firms' aptitude to impose sufficiently severe punishments in case of deviation from … the collusive rule. We extend results from the literature on optimal collusion by investigating the role of limited … severity. In this case the lowest discount factor that permits collusion is strictly higher than without the limited liability …

that an alliance between such airlines may facilitate collusion on price and/or service levels in the partners' overlapping …

use of guarantees, but the overall ability of price guarantees to act as a collusion facilitating device becomes …

In this paper we present an experiment in which we test the effects of sequential entry on the stability of collusion … makes collusion harder to sustain. In this study, we explore to what extent collusion can be upheld with exogenous entry … prior to entry. We find that collusion is indeed easier to sustain in the latter case than in groups starting large. We …