We propose a general equilibrium model with oligopolistic output markets where two channels can cause a change in market power: (i) technology, via changes to productivity shocks and the cost of entry, (ii) market structure, via changes to the number of potential competitors. First, we...

The Digital Development Dialogue (3D) seminar is a monthly 45-minute online forum for policy and research exchange. Two speakers – one researcher and one practitioner – touch upon key topics in development policy with the goal of stimulating a meaningful dialogue across the theory & practice...

Economists typically make simplifying assumptions to make the solution and estimation of their highly complex models feasible. These simplifications include approximating the true nonlinear dynamics of the model, disregarding aggregate uncertainty or assuming that all agents are identical. While...

We explore how firms grow by adding products. In contrast to most earlier work on the topic, our conceptual and empirical framework allows for separate treatment of product innovation (vertical differentiation) and diversification (horizontal differentiation). Chad Syverson Professor of...

The seminar introduces the participants to the methods, techniques and theories commonly used in their research area. It also offers possibilities for young researchers to get in contact with their peers, to explore new avenues of thinking, to learn collectively and to exchange ideas in a very...

We propose a simple explanation for the long-run decline in the startup rate. It was caused by a slowdown in labor supply growth since the late 1970s, largely pre-determined by demographics. This channel explains roughly two-thirds of the decline and why incumbent firm survival and average...

Do sanctions strengthen the targeted regime? I analyze the 2014 imposition of Western sanctions on Russia and its impact on voting. The United States and the European Union introduced targeted measures against Russian entities and individuals related to President Putin’s regime. Using polling...

Speaker: Andrea Ichino -European University Institute, San Domenico di Fiesole (FI), Italy. University access has greatly expanded during past decades and further growth figures prominently in political agendas. We study possible consequences of historical and future expansions in a stochastic,...

Am 29.09.2022 hat die Projektgruppe Gemeinschaftsdiagnose der führenden deutschen Wirtschaftsforschungsinstitute ihr Herbstgutachten über die Entwicklung der Weltwirtschaft und der deutschen Wirtschaft vorgelegt. Mit dem Titel „Energiekrise: Inflation, Rezession, Wohlstandsverlust“...

We provide evidence for a causal link between the US economy and the global financial cycle. Using a unique intraday dataset, we show that US macroeconomic news releases have large and significant effects on global risky asset prices. Stock price indexes of 27 countries, the VIX, and commodity...