this time period calcium antagonists and ACE-inhibitors increased their market shares at the expense of the older drugs … drug. The choice of drug is unaffected by relative prices, indicating a moral hazard problem on the Swedish drug market … patient habit formation which slows down the diffusion of new drugs. Without habit effects the market share of calcium …

It has been argued that having a contract market before the spot market enhances competition (Allaz and Vila, 1993 … contract markets reduces the market power of generators. In particular, we investigate the sensitivity of this result with … respect to the finite horizon assumption. This paper proposes a model of the electricity market where firms sign long …