This paper addresses the pressing need for rapid decarbonization of energy systems by examining the role of nuclear power in future energy scenarios collected in the IPCC database. Despite their explorative character, energy scenarios can influence decision-makers or might be used to promote certain technology developments. They are increasingly subject to the integration into real-world settings and ...
We study the impact of agglomeration effects on firms’ total factor productivity (TFP) for industry groups defined by technology intensity. This allows for non-uniform effects on firms depending on their technological level. We find that urban economies have the largest impact on firm productivity in high-technology industries, while they have no effectin low-technology industries. For firms in the ...
This paper re-evaluates the US external deficit which has considerably widened over the 1990s. US safe asset provision to the rest of the world is the dominant explanation for the persistent nature of the US external deficit. We suggest that apart from the safe asset hypothesis, there is an important role for technology shocks originating in US multinational companies that have a strong foreign direct ...
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 three ...
We consider structural vector autoregressions identified through stochastic volatility. Our focus is on whether a particular structural shock is identified by heteroskedasticity without the need to impose any sign or exclusion restrictions. Three contributions emerge from our exercise: (i) a set of conditions under which the matrix containing structural parameters is partially or globally unique; (ii) ...
Achieving climate neutrality and energy independence will require the accelerated diffusion ofexisting technologies, further cost reductions, as well as innovation in new technologies.However, climate related frontier innovation, as measured by patent fi lings, has been decliningsince 2012. In contrast, the deployment of existing technologies seems on the rise. The focus ondiffusion and commercialization ...
Making macroeconomics fit for a climate-neutral future: The European Union decided to be climate-neutral by 2050 and, hence, become the first climate-neutral continent in the world. Becoming climate-neutral can be considered one of the biggest challenges in our industrial societies. This transition will shape our future tremendously. The invasion of Ukraine further reinforced the necessity to speed ...
Critical discussions about decarbonising our economy: This new series brings together leading thinkers in the political economy of the environment to discuss why business as usual is still going so strong, despite the scientific evidence that urgent action is needed. In this series, we ask our guests "what is holding up the green transition"? The events explore systemic root causes of the climate crisis ...