Fiscal Policy and Ecological Sustainability: A Post-Keynesian Perspective

  • Yannis Dafermos
  • Maria NikolaidiEmail author
Part of the International Papers in Political Economy book series (IPPE)


Fiscal policy has a strong role to play in the transition to an ecologically sustainable economy. This contribution critically discusses the way that green fiscal policy has been analysed in both conventional and post-Keynesian approaches. It then uses a recently developed post-Keynesian ecological macroeconomic model in order to provide a comparative evaluation of three different types of green fiscal policy: carbon taxes, green subsidies and green public investment. We show that (i) carbon taxes reduce global warming but increase financial risks due to their adverse effects on the profitability of firms and credit availability; (ii) green subsidies and green public investment improve ecological efficiency, but their positive environmental impact is partially offset by their macroeconomic rebound effects; and (iii) a green fiscal policy mix derives better outcomes than isolated policies. Directions for future heterodox macroeconomic research on the links between fiscal policy and ecological sustainability are suggested.


Post-Keynesian economics Ecological economics Green fiscal policy Stock-flow consistent modelling 

JEL Codes

E12 E62 Q54 Q57 


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© The Author(s) 2019

Authors and Affiliations

  1. 1.Department of EconomicsSOAS, University of LondonLondonUK
  2. 2.Department of International Business and EconomicsUniversity of GreenwichLondonUK

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