Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...

We study oligopolistic firms' incentives to share customer informationabout past purchase history in a situation where firms are uncertainabout whether a particular consumer considers the product offeringscomplements or substitutes. By addressing this new type ofbehavior-based price...

We study oligopolistic firms' incentives to share customer informationabout past purchase history in a situation where firms are uncertainabout whether a particular consumer considers the product offeringscomplements or substitutes. By addressing this new type ofbehavior-based price...

In this paper, we show that progressivity (regressivity) of burden sharing in a Lindahl equilibrium is a direct consequence of gross complementarity (substitutability) between the private and the public good when the public good is taken as the numéraire. We, moreover, link the respective...

The Hicksian definition of complementarity and substitutability may not apply in contexts in which agents are not utility maximisers or where price or income variations, whether implicit or explicit, are not available. We look for tools to identify complementarity and substitutability satisfying...

Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...