We examine electricity market reform in Brazil: from the 1990s till 2004 the largely hydro-powered market cleared using a market mechanism, and in March 2004 reformed to a single buyer structure. We model monthly log price differences using a two-state Markov Switching model, allowing water...

In this paper we give an overview of government regulations in the national drug markets of the European Community. We describe the admission of new medicines to the market, the organisation of the distribution system, the control of pharmaceutical prices, and the patient copayment schemes for...