Product differentiation is well established as being the key source of the cereal industry's high price-cost margins. However, there is little consensus as to whether pricing collusion is also a source of profitability, and indeed, whether price even serves as a strategic variable in this...

While there are suggestions in applied cartel studies that price dispersion changes when cartelization of a market occurs, there are few theoretical or empirical analyses of this effect. This paper surveys the thin economic literature on the link between overt collusion and price dispersion....