This paper analyses the pass-through rates and their determinants of the temporary German fuel discount in 2022 at its start and its termination. Based on a unique dataset of fuel station characteristics and prices, we employ a Regression Discontinuity in Time (RDiT) methodology to estimate heterogeneous pass-through rates. Our main contribution is to identify the impact of horizontal and vertical ...
People have a need to form and maintain fulfilling social contact, yet they differ with respect to with whom they satisfy the need and how quickly this need is deprived or overly satiated. These social dynamics across relationships and across time are theoretically delineated in the current article. Furthermore, we developed a questionnaire to measure individual differences in three aspects of such ...
This paper investigates the elusive role of productivity heterogeneity in new trade models in the trade and environment nexus. We contrast the Eaton-Kortum and the Melitz models with firm heterogeneity to the Armington and Krugman models without heterogeneity. We show that if firms have a constant emission share in terms of sales — as they do in a wide range of trade and environment models — the...
This paper examines the impacts of new policies aimed at reducing the cost of renting by regulating the actions of intermediaries in the rental market. We highlight how information frictions between buyers and intermediaries can give rise to rents in the thick two-sided market. The distribution of these rents between intermediaries and sellers, as well as the impact of price regulation, depends on...
We propose to use new survey data to investigate factors that explain whether and why individuals either did not get a COVID-19 vaccine shot or chose to delay getting one. While we examine hesitancy about the COVID-19 vaccine, our study will yield broader insights. Our project has many strengths. In fifteen countries, we will use internationally-harmonized data on individual vaccination behavior...
DIW Graduate Center and the Berlin School of Economics have approved an exchange programme with the PhD programme of the Aix-Marseille School of Economics (AMSE). This includes participation in PhD courses for which you will receive accreditation (please note that core courses are not interchangeable) as well as research stays at the AMSE faculty. If you are interested in joining AMSE for a few months, ...
This paper analyzes a merger of large manufacturers with divestiture in the French coffee market. In contrast to previous approaches used to study the effects of upstream divestitures on prices and welfare, we model the vertical market structure. First, our results show that the standard policy recommendation to require divestiture to small recipient firms may not hold when asymmetric bargaining power ...
Various options are discussed to de-fossilize heavy-duty vehicles, including battery-electric vehicles (BEVs), electric road systems (ERS), and indirect electrification via hydrogen fuel cells or e-fuels. We investigate their power sector implications in future scenarios of Germany, with high renewable energy shares, using an open- source capacity expansion model and route-based truck traffic data. ...
