This paper analyzes whether the expansion of regional airports in Germany caused positive spillover effects on the surrounding economies, exploiting the deregulation of the European aviation market as a quasi-experiment. Such potential spillovers are often used as an argument for the substantial...

Between 2003 and 2005, the German government passed an unprecedented package of labor market reforms, commonly known as the Hartz-reforms. This led to a "labor market miracle" with sharply declining unemployment rates. This paper examines these reforms at the regional level and provides a...

In this paper, we study the long- and short-run relationship between regional public debt and economic performance for a sample of German federal states over the period of four decades (1970-2010). By choosing a sample of regional entities with comparable institutional settings, we complement...

Many health care systems aim to enhance hospital quality by encouraging competition. However, evidence on the relationship between quality and competition is inconclusive. My contribution to this literature is two-fold. Analyzing the relationship between competition and quality for the German...

Recent debates on how to provide electricity to the roughly one billion still unconnected people in developing countries have identified mini-grids as a promising way forward. High upfront costs of transmission lines are avoided, and unlike home-scale solar, mini-grids can provide sufficient...

Extending the power grid into hitherto unconnected areas is high on the policy agenda in Sub-Saharan Africa. Yet, connection rates and electricity consumption remain low in grid connected areas, at least in the short and medium run. This paper provides a long-term follow-up on an evaluation of a...

The shale gas revolution in the United States induced an unprecedented commodity boom across northwestern India. Leveraging population-based discontinuities in the contemporaneous roll-out of India's national rural electrification scheme, we show that access to electricity increased total...

Emission-free hydrogen (H2) is crucial to decarbonize energy supply and to tackle the climate crisis. To unlock the potential of H2, pipelines infrastructures and related investments are required to enable trade. However, it is uncertain what future H2 infrastructure will be needed. The paper...

High hopes are pinned to mini-grids for rural electrification, especially in remote and sparsely populated areas. This note presents new evidence from a large evaluation of a US Millennium Challenge Corporation investment into mini-grids in Indonesia. We find that, a few years after...

Time preferences vary by age. Notably, according to experimental studies, senior citizens tend to discount future payoffs more heavily than working-age individuals. Based on these findings, we hypothesize that demographic change has contributed to the cut-back in government-financed investment...