This paper considers a market in which only the incumbent's quality is publicly known. The entrant's quality is observed by the incumbent and some fraction of informed consumers. This leads to price signalling rivalry between the duopolists, because the incumbent gains and the entrant loses when...

Uncertainty in election outcomes generates politically induced regulatory risk. For monopoly regulation, political parties' risk attitudes towards such risk depend on a fluctuation effect that hurts both parties and an output-expansion effect that benefits at least one party. Irrespective of the...