Phasing of deregulation: Normative versus positive objectives

Deregulation is traditionally endorsed by economists but meets either little reception by politicians or is substantially weakened within the political process. Many papers discuss this aspect, primarily from a rent-seeking aspect. This paper emphasizes the dynamics of deregulation when consumers have sunk costs on the basis of a past regulatory regime. The paper proves first that deregulation should be radical rather than transitory within a conventional, normative framework, even if the consumers act naively and have to bear substantial adjustment costs. As a contrast, a positive model of a vote maximizing politician is introduced that explains why and when actual deregulation proceeds gradually. However, a politician should deregulate at an excessively radical rate at the beginning, if voters have a short memory and/or if demand adjusts sufficiently fast.