Abstract: Electricity markets are increasingly shaped by uncertainty in residual demand due to renewable expansion. This weakens the disciplining role of forward markets and amplifies the potential for market power in spot pricing. Understanding this mechanism is essential for informed market design in the context of growing intermittency and structural transformation of energy systems.
This work presents a multi-stage stochastic optimization model to analyze price dynamics and reliability of supply in a 100% renewable power system. The stochastic framework captures uncertainty arising from the intermittency of weather-dependent renewable energy sources and compares three market design options for a future fully renewable German electricity market: an energy-only market without...
This paper identifies a risk-hedging mechanism we coin the "dirty self-hedge" and analyzes how it affects financing costs of green industrial investments. The dirty self-hedge occurs in basic materials production when exclusively conventional, emission-intensive producers can pass on input price shocks to final product prices. They thus have a natural hedge for their profit margins against input...
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The article “Public Communication and Collusion: New Screening Tools for Competition Authorities” by Tomaso Duso, Carl Kreuzberg, Joseph Harrington und Geza Sapi has won the Concurrences Antitrust Writing Award 2026 in the category “Academic Articles – Coordinated Practices.” The “Best Academic Articles Awards” recognize excellence in the fields of antitrust law and economics. In the award-winning ...
Many countries use job-retention schemes, such as short-time work (STW), to stabilize the labor market during economic downturns. While these schemes might prevent unemployment (UE) and its adverse effects on workers, STW could also deter workers from moving to more productive firms, thereby negatively affecting their labor market outcomes in the long run. We analyze the long-term effects of STW and ...
With the liberalization of the electricity markets in 1998, Germany opted for a single, nationwide wholesale price. Regional differences in supply and demand are not taken into account. In the event of grid congestion, electricity generators are paid to adjust their output. This leads to rising costs, an overestimation of grid expansion requirements and increased bureaucracy. Reforms are therefore ...
