In November 2011 Sweden abolished the uniform national electricity price and introduced separate price zones. This was the result of an antitrust settlement between the Commission and the Swedish network operator, which was accused of discriminating between domestic and export electricity...

The European Commission has launched a number of antitrust investigations against the major energy incumbents in the aftermath of the energy sector inquiry. Most of them have already been settled under Article 9 of the EC Regulation 1/2003 and the undertakings offered far-reaching, sometimes...

We demonstrate how suppliers can take strategic speculative positions in derivatives markets to soften competition in the spot market. In our game, suppliers first choose a portfolio of call options and then compete with supply functions. In equilibrium firms sell forward contracts and buy call...

The high volatility of electricity markets gives producers and retailers an incentive to hedge their exposure to electricity prices. This paper studies how welfare and investment incentives are affected when markets for derivatives are introduced, and to what extent this depends on market...

We demonstrate how suppliers can take strategic speculative positions in derivatives markets to soften competition in the spot market. In our game, suppliers first choose a portfolio of call options and then compete with supply functions. In equilibrium firms sell forward contracts and buy call...

We model the regulation of irreversible capacity expansion by a firm with private information about capacity costs, where investments are financed from the firm's cash flows and demand is stochastic. The optimal mechanism is implemented by a revenue tax that increases with the price cap. If the...