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Autor:innen: 
Erscheinungsjahr: 
2025
Schriftenreihe/Nr.: 
Working Paper No. 259/2025
Verlag: 
Hochschule für Wirtschaft und Recht Berlin, Institute for International Political Economy (IPE), Berlin
Zusammenfassung: 
This paper examines two literatures that try to understand the biophysical constraints placed on the economy and economic growth. Firstly, exergy economics uses the second law of thermodynamics to examine the aggregate exergy conversion process to the useful stage. This shows the dependency of the economy on physical laws and highlights the limits to continued productivity growth. I argue that exergy economics provides a vital contribution to economics, but previous attempts to integrate it into an economic framework are undermined by a reliance on the neoclassical production function. Secondly, ecological macroeconomics examines biophysical constraints to the economy using heterodox economic theory and models. My review of this literature shows that productivity growth is often modelled as unconnected to energy and materials and able to increase exponentially into the future despite biophysical constraints. The paper argues that biophysical limits to productivity growth need to be considered alongside the more commonly modelled damage functions and limits to resource availability and quality in ecological macroeconomics.
Schlagwörter: 
Exergy
Energy
Societal Exergy Analysis
Ecological Macroeconomics
Technical Change
Production Functions
Limits to Growth
JEL: 
E12
O44
Q43
Q57
Dokumentart: 
Working Paper

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