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Merger Efficiency Gains: Evidence from a Large Transport Merger in France

Many industries are seeing an increase in concentration, leading to a discussion on the effectiveness of horizontal merger enforcement. The policy debate shows that one of the key arguments put forward when supporting potential mergers is the possibility of realization of merger efficiency gains, specifically in the transport industry. Yet, there exists little empirical evidence on the actual effects ...

Modeling the Low-Carbon Transition of the European Energy System - a Quantitative Assessment of the Stranded Assets Problem

In this paper, multiple pathways for the European energy system until 2050 are computed, focusing on one of the major challenges of the low-carbon transition: the issue of unused capacities and stranded assets. Three different scenarios are analyzed, utilizing the Global Energy System Model (GENeSYS-MOD) for calculations. A major feature is the introduction of limited foresight and imperfect planning ...

Wenn aus Scham die Rente zu gering ist

Sehr viele alte Menschen bekommen weniger Rente, als ihnen zusteht. Sie schämen sich oder wissen nicht, wie sie einen Zuschuss beantragen können. Das muss sich ändern. Kolumne Dieser Beitrag ist am 10. Januar 2020 in der ZEIT ONLINE–Kolumne Fratzschers Verteilungsfragen erschienen. Hier finden Sie alle Beiträge von Marcel Fratzscher. Weit mehr als die Hälfte der Rentnerinnen ...

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Same, but Different? Testing Monetary Policy Shock Measures

In this study, we determine the reliability and exogeneity of four popular monetary policy shock measures, namely the narrative series of Romer and Romer (2004), the high-frequency series of Barakchian and Crowe (2013), the high-frequency series of Gertler and Karadi (2015), and the hybrid series of Miranda-Agrippino and Ricco (2018b). To this end, we employ the Proxy-SVAR model and different empirical ...

Optimal Benefit-Based Corporate Income Tax

Abstract:   I derive an optimal benefit-based corporate tax rate formula as a function of the public input elasticity of profits and the (net of) tax elasticity of profits. I argue that the existence of the corporate income tax should be justified by the benefit-based view of taxation: firms should pay tax according to the benefits they receive from the use of the public input. I argue that...

Monetary Policy, Bank Bailouts, and the Sovereign-Bank Risk Nexus in the Euro Area

The article analyses the empirical relationship between bank credit risk and sovereign credit risk in the euro area, using a system of simultaneous equations identified through heteroskedasticity. We first confirm a two-way causality between both risks, which amplifies initial credit risk shocks. We also document significant credit risk spillovers between sovereigns and banks in the periphery and the ...

No Evidence for a Protective Effect of Education on Mental Health

This paper analyzes whether education has a protective effect on mental health. To estimate causal effects, we employ an instrumental variable (IV) technique that exploits a reform extending compulsory schooling by one year implemented between 1949 and 1969 in West Germany. We complement analyses on the Mental Component Summary (MCS) score as a generic measure of overall mental health with an MCS-based ...

The MARS Algorithm in the Spatial Framework: Non-Linearities and Spatial Effects in Hedonic Models

Multivariate Adaptive Regression Spline (MARS) is a simple and powerful non-parametric technique that automatizes the selection of non-linear terms in regression models. Non-linearities and spatial effects are natural characteristics in numerous spatial hedonic pricing models. In this paper, we propose using the MARS data-driven methodology combined with the Instrumental Variables method in order to ...