Monopoly prices versus Ramsey-Boiteux prices: Are they "Similar" and: Does it matter?

Ramsey-Boiteux prices and monopoly prices are frequently regarded as being similar. This might suggest that sometimes monopoly pricing is close to the Ramsey-Boiteux second best and welfare superior to imperfectly regulated prices. This paper tries to specify what is meant by "being similar". Both sets of prices are similar in a theoretical sense but differ not only with respect to price levels but can even lead to different price orders. The paper discusses the impact of competition and stresses the difference between market and residual demand, which are important for the Ramsey-Boiteux and the monopoly problem, respectively. © Springer Science + Business Media, Inc. 2006.