U.S. shale gas production is generally expected to continue its fast rise of the last years. However, a cautious evaluation is needed. Shale gas resources are potentially overestimated and it is uncertain to what extent they can be economically produced. The adverse environmental effects of ever more wells being drilled may lead to a fall in public acceptance and the strengthening of U.S. regulation. ...
It is increasingly observable that competitors in different industries share customer data, which can be used for targeted pricing. We propose a modified Hotelling model with two-dimensional consumer heterogeneity to analyze the incentives for such sharing and its ensuing welfare effects. We show that these incentives depend on the type of customer data and on consumer heterogeneity in the strength ...
The paper investigates the link between bank concentration and a country's buyout market. We perform a macro level analysis for 15 European countries during 1997-2007. We estimate the elasticity of the country i's buyout market to country i's concentration in the banking sector. Our major finding suggests that the more concentrated the banking sector is, the better it is for the size of the buyout ...
Mit mehr als 6.000 Unternehmen kann die Trinkwasserversorgung Deutschlands im internationalen Vergleich als höchst fragmentiert angesehen werden. Während die Trinkwasserversorgung in zahlreichen Ländern durch eine ähnliche Fragmentierung gekennzeichnet ist, gibt es aber auch Beispiele höchst konsolidierter Versorgungsstrukturen: so gibt es in England und Wales lediglich 22 Trinkwasserversorgungsunternehmen ...
We analyse 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. Our first results is that export tariffs are strategic complements and that for poor harvests equilibrium tariffs can explode (shedding some light ...
We investigate the welfare impact of parallel imports using a large panel data set containing monthly information on sales, ex-factory prices, and further product characteristics for all 700 anti-diabetic drugs sold in Germany between 2004 and 2010. We estimate a two-stage nested logit model of demand and, based on an oligopolistic model of multiproduct firms, we then recover the marginal costs and ...
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 guarantees will have no effect on prices if search costs are low, hassle costs are high and the number of uninformed ...
US shale gas production is generally expected to continue its fast rise. However, a cautious evaluation is needed. Shale gas resource estimates are potentially overoptimistic and it is uncertain to which extent they can be produced economically. Moreover, the adverse environmental effects of ever more wells to be drilled may lead to a fall in public acceptance and a strengthening of regulation. The ...