The Stahl model is one of the most applied consumer search models, with many applications and an empirical background. The present paper explores an extension where sellers have asymmetries, which is mostly excluded by the literature. Sellers with heterogeneous numbers of stores are introduced,...

We analyze a stylized model of the world grain market characterized by a small oligopoly of traders with market power on both the supply and demand side. Crops are stochastic and exporting countries can impose export tariffs to protect domestic food prices. We show that export tariffs are...

This paper explores the relationship between the intensity of competition in product markets and firms' incentives to lower their production costs by illegal means. Our framework combines a Salop circle with a crime model la Becker, allowing us to differentiate between several measures for the...

We examine welfare effects of real-time pricing in electricity markets. Before stochastic energy demand is known, competitive retailers contract with final consumers who exogenously do not have real-time meters. After demand is realized, two electricity generators compete in a uniform price...

I model the optimal semi-collusive strategy of firms using forward contracts in volatile markets. It has been shown that forward contracts can be used to stabilize a collusive agreement under deterministic (Liski and Montero, 2006) as well as under stochastic market conditions (Aichele, 2012)....

The paper deals with the competitive effects of price guarantees in a spatial duopoly where consumers can search for lower prices but have to incur hassle costs if they want to claim a price guarantee. It is shown that symmetric equilibria with and without price guarantees exist but price...

This paper studies the impact of a dominant firm's conditional discounts on competitors' learning-by-doing. In a vertical context where a dominant upstream supplier and a competitive fringe sell their products to a single downstream firm, we analyze whether the dominant supplier prefers to off...

We analyze the relationship between firm-specific shocks and aggregate fluctuations. In particular, profitability of firms affected by a negative shock worsens. To the extent that the banks cannot distinguish between aggregate and firm-specific profitability shocks, they will adjust interest...

To explain organizational decisions in multistage production processes we assume a production process with one producer and two suppliers of which one is the firm's direct supplier and the other one is the supplier of the supplier. The firm decides only on the organizational form of her direct...

We examine network effects as an impediment to optimal financial contracting. In devising the terms of their transaction, the parties may prefer to conform to a market standard rather than matching their own contracting needs. To study this possibility, we investigate choice of contract law...