A quota on foreign competition will generally lead to quality-upgrading (downgrading) of the low-quality (high-quality) firm, an increase in average quality, a reduction of quality differentiation, and a reduction of domestic consumer surplus, irrespective of whether the foreign firm produces...

We know that euro-area member countries have absorbed asymmetric shocks in ways that are inconsistent with a common nominal anchor. Based on a reformulation of the gravity model that allows for such bilateral misalignment, we disentangle the conventional trade cost channel and trade effects...

We characterize a monopolist's optimal offer of service plans when only informed customers know already at the contracting stage whether their demand is high or low, while uninformed customers may learn their demand only after incurring some costs, if at all. While informed customers purchase...

We study how consumer search affects pricing in markets with incumbents and entrants using panel data on German electricity retail markets. Consumers observe the baseline price of the incumbent and decide whether or not to search. Incumbent providers can price discriminate between searching and...

We scrutinize the impact of international productivity gains (spillovers) induced by imports and exports on optimal tariffs. First, we solve a stylized 2x2 trade model of a large open economy and show that (a) productivity gains via exports and imports both reduce the strategically optimal...

This paper investigates price discrimination of German exporters across different foreign markets. We examine the degree of pass-through of exchange rate fluctuations in the pricing of 70 export items. The model is estimated using panel data on export unit values. Parameter estimation relies on...

The paper aims at assessing the costs and benefits of antitrust enforcement. The analysis starts with an investigation of why competition is typically worth protecting followed by a collection of empirical evidence which shows that competition actually needs protection by antitrust policy in...

Given the coexistent EU priorities concerning the competitiveness of European industries and international emissions regulation at the company level, this paper assesses the efficiency and competitiveness implications of linking the EU Emissions Trading Scheme (ETS) to emerging trading schemes...

The paper provides a comprehensive survey of the economics behind the fight against hard core cartels. Differentiating between four subsequent stages – characterisation, welfare effects, enforcement and evaluation – the paper pays particular attention to cartel detection methods, the...