We define a two-variant model of product differentiation which, depending on the number of consumersprefering one variant to the other, provides equilibrium prices reflecting the natural valuation of thesevariants by the market....

For several years, the financial services industry has discovered the opportunities of differentchannels like the Internet, call-centers, WAP etc. Many banks built up separate direct banksfocusing exclusively on the Internet and/or call-centers. Only recently, some banks started toreintegrate...

Changing noise levels have a severe impact on house prices and through the leveragein nancing on households wealth. This risk is essential for houses close to airportswith uncertain aircraft regimes. We design and calibrate real options based on aircraftnoise to hedge against noise risk. The...

In this paper we address the issue of finding efficient partial equilibria in markets with nonconvexities.This is a problem that has intrigued generation of economists. Beside its theoreticalimportance this issue is fundamental in energy markets which do not give the right price signalsand...