We consider a monopolistic supplier’s optimal choice of wholesale tariffs when downstream firms are privately informed about their retail costs. Under discriminatory pricing, downstream firms that differ in their ex ante distribution of retail costs are offered different tariffs. Under uniform...

Natural disasters affect bilateral trade. We use this fact to generalize the instrumental variables strategy of Frankel and Romer (1999) to a panel setup. This allows revisiting an old question: Does openness cause per capita GDP? We work with a modified gravity framework in which we interact...

Mit der von der Bundesregierung in Auftrag gegebenen Gesamtevaluation ehe- und familienbezogener Leistungen wurden erstmals zentrale Instrumente der deutschen Familienpolitik systematisch und umfassend evaluiert. Dabei wurden folgende familienpolitische Ziele vorgegeben: die Sicherung der...

Does the mere presence of big banks affect macroeconomic outcomes? Gabaix (2011) shows that idosyncratic shocks can have aggregate effects if the distribution of firm sizes in manufacturing follows a power law distribution. Our contribution is two-fold. First, we expand the theory of granularity...

We investigate empirically how party ideology influences size and scope of government as measured by the size of government, tax structure and labor market regulation. Our dataset comprises 49 US states over the 1993-2009 period. We employ the new data on the ideological mapping of US...

We derive a simple equation for the welfare gains from trade when tariffs are liberalized or iceberg trade costs fall. Covering various one-sector trade models that may or may not feature extensive margins and imperfect competition, we generalize the analysis of Arkolakis, Costinot and...

This article presents a micro data approach to the identification of credit crunches. Using a survey among German firms which regularly queries the firms’ assessment of the current willingness of banks to extend credit, we estimate the probability of a restrictive loan supply policy by time...

Germany has the lowest birth rate among all OECD countries. To encourage fertility, the federal government has recently introduced a set of reforms that led to a substantial expansion of public child care for under three year old children. Using administrative county-level data, we exploit...

In June 2013, the Federal Constitutional Court in Germany held an expert hearing on the suitability of ECB measures, such as the purchase of government bonds, and their compatibility with existing EU and German legislation. The statements of five invited experts are documented here. The authors...