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May 2021 - February 2022
October 2014 - May 2021
German Institute for Economic Research
- Research Associate
Green hydrogen can help to decarbonize parts of the transportation sector, but its power sector interactions are not well understood so far. It may contribute to integrating variable renewable energy sources if production is sufficiently flexible in time. Using an open-source co-optimization model of the power sector and four options for supplying...
We fit CES and VES production functions to data from a numerical bottom-up optimization model of electricity supply with clean and dirty inputs. This approach allows for studying high shares of clean energy not observable today and for isolating mechanisms that impact the elasticity of substitution between clean and dirty energy. Central results sh...
When analyzing potential ways to counter climate change, standard models of green growth abstract from investment in substitutability between "clean" and "dirty" energy inputs. Instead, they rely on the assumption that efficiency with respect to fossil fuels can be increased perpetually. However, this is not in line with observed firm investment be...
This paper provides the first comprehensive review of the empirical and theoretical literature on the determinants of the elasticity of substitution between capital and labor. Our focus is on the two‐input constant elasticity of substitution (CES) production function. We start by presenting four concise observations that summarize the empirical lit...
Green hydrogen can decarbonize transportation, but also help to integrate variable renewable energy sources if its production is sufficiently flexible in time. Using an open-source co-optimization model of the power sector and four supply chains for hydrogen at filling stations, we find a trade-off between energy efficiency and temporal flexibility...
This paper reviews the status quo of the empirical and theoretical literature on the determinants of the elasticity of substitution between capital and labor. Our focus is on the two-input constant elasticity of substitution (CES) production function. By example of the U.S., we highlight the distinctive heterogeneity in empirical estimates of σ at...