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Economic Growth, Poverty Traps, and Wealth Concentration: Riddles and Waves Driven by Unproductive Assets Abstract. This research paper studies a non-linear dynamic macroeconomic model to analyze the interactions between economic growth and the concentration of wealth driven by productive and unproductive capital or bubbly assets. The paper considers both a deterministic and a stochastic version of the model to analyze the economy's evolution, i.e., growth, poverty traps, and wealth concentration. For the deterministic case of the model, we show that poverty traps exist as a stable or unstable (saddle) steady state, depending on whether the returns to unproductive assets are positive or negative. A high-level equilibrium exists when the returns on unproductive assets are negative, but fluctuations (i.e., cycles or oscillations) may occur. For the stochastic and bubbly case, we calibrate the model, and we may conclude that the implementation of economic policies that improve the investments of capitalists in productive capital would remove the economies from the threat of a poverty trap and possible fluctuations, in addition to the fact that wealth inequality would decline in the long run

Author

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  • Francesca Grassettia
  • Edgar J. Sanchez Carrerab

Abstract

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Suggested Citation

  • Francesca Grassettia & Edgar J. Sanchez Carrerab, 2025. "Economic Growth, Poverty Traps, and Wealth Concentration: Riddles and Waves Driven by Unproductive Assets Abstract. This research paper studies a non-linear dynamic macroeconomic model to analyze the ," Working Papers - Economics wp2025_05.rdf, Universita' degli Studi di Firenze, Dipartimento di Scienze per l'Economia e l'Impresa.
  • Handle: RePEc:frz:wpaper:wp2025_05.rdf
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    Keywords

    Economic Growth; Non-linear Growth Models; Rentier premium; Unproductive assets; Wealth inequality.;
    All these keywords.

    JEL classification:

    • E10 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - General
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • O16 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Financial Markets; Saving and Capital Investment; Corporate Finance and Governance
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
    • P46 - Political Economy and Comparative Economic Systems - - Other Economic Systems - - - Consumer Economics; Health; Education and Training; Welfare, Income, Wealth, and Poverty

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