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Supermultiplier, innovation and the ecosystem: A stock-flow dynamic model

Supermultiplier, innovation and the ecosystem_png

28 January 2019

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UCL Institute for Innovation and Public Purpose (IIPP) Working Paper Series: IIPP WP 2019-01


Authors

  • Matteo Deleidi | Honorary Research Associate, UCL Institute for Innovation and Public Purpose
  • Riccardo Pariboni | Research Associate, Roma Tre University, Rome, Italy 
  • Marco Veronese Passarella | Lecturer of Economics, Leeds University Business School 

Reference

Deleidi, M., Pariboni, R., Veronese Passarella, M. (2019). Supermultiplier, innovation and the ecosystem: A stock-flow dynamic model. UCL Institute for Innovation and Public Purpose, Working Paper Series (IIPP WP 2019-01). https://www.ucl.ac.uk/bartlett/publicpurpose/wp2019-01

Abstract

This work builds upon four different theoretical approaches: i. the Sraffian supermultiplier model; ii. the Schumpeterian framework of evolutionary economics that emphasises the entrepreneurial role of the state; iii. the ‘stock-flow consistent’ approach to macroeconomic modelling; and iv. recent developments in ecological economics literature aiming at cross-breeding post-Keynesian theories and models with more traditional ‘green’ topics. Our main purpose is to develop a simple analytical tool that can help examine: a) the impact of government spending on private innovation; b) the impact of innovation on economic growth and the ecosystem; and c) the impact of ecological feedbacks on economic growth and government spending effectiveness. We find that, in principle, government can be successful in supporting innovation and growth while slowing down matter and energy reserves’ depletion rates, and tackling climate change. However, the latter may well affect government policy effectiveness.