We use a model of horizontal and vertical differentiation to study physicians’ incentives to provide quality in the physician-patient relationship under price regulation. If the price is the only regulatory variable, the social planner cannot implement the first-best policy. Moreover, the...

We analyze the deficits of the German Länder for the period from 1960 to 2005 and test a number of hypotheses derived from the literature on the political economy of public deficits. Estimating a dynamic panel data model, we find evidence for political opportunism in the spirit of Rogoff and...

The German statutory health insurance market was exposed to competition in 1996. To avoid adverse selection, a prospective risk compensation scheme was introduced in 1994. Due to their low contribution rates, company-based sickness funds were able to attract a lot of new members. We analyze –...

We study the market for vaccinations considering income heterogeneity on the demand side and monopoly power on the supply side. A monopolist has an incentive to exploit the external effect of vaccinations and leave the poor susceptible in order to increase the willingness to pay of the rich....

We analyse how national taxation of firms are likely to affect merger incentives in international markets. In particular, we ask whether non-coordinated trade policies stimulate cross-border mergers that are overall inefficient, and if this is then an argument for international coordination of...

We analyze unionized firms’ incentives to outsource intermediate goods production to foreign (low-cost) subcontractors. Such outsourcing leads to increased wages for the remaining in-house production. We find that stronger unions, which imply higher domestic wages, reduce incentives for...

We find that trade unions have a rational incentive to oppose the adaption of labour-saving technology when labour demand is inelastic and unions care much for employment relative to wages. Trade liberalisation typically increases trade union technology opposition. These conclusions are reached...

We examine how a downstream merger affects input prices and, in turn, the profitability of such a merger under Cournot competition with differentiated products. Input suppliers can be interpreted as ordinary upstream firms, or trade unions organising workers. If the input suppliers are...

We analyse the question of optimal taxation in a dual economy, when the government is concerned about the distribution of labour income. Income inequality is caused by the presence of sunk capital investments, which creates a .good jobs. sector due to the capture of quasi-rents by trade unions....