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Poverty trap, boom and bust periods and growth. A nonlinear model for non-developed and developing countries

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Abstract

This work investigates the qualitative and quantitative dynamics of a Solow–Swan growth model with differential savings as proposed by Böhm and Kaas (J Econ Dyn Control 24:965–980, 2000) assuming the shifted Cobb–Douglas (SCD) production function (see Capasso et al. in Nonlinear Anal. 11:3858–3876, 2010) which makes it possible to consider the long-run dynamics of non-developed and developing countries as well as that of developed economies. The resulting model is described by a nonlinear discontinuous map generating both a poverty trap and complex dynamics. Furthermore, multistability phenomena may emerge: besides the “vicious circle of poverty”, long-run behaviours may include boom and bust periods. Complex basins can emerge, hence, economic policies trying to raise the capital per capita may fail and economies may be captured by the poverty trap.

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The authors wish to thank the Editor and the two anonymous Referees for their valuable comments and suggestions.

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Correspondence to Francesca Grassetti.

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Grassetti, F., Mammana, C. & Michetti, E. Poverty trap, boom and bust periods and growth. A nonlinear model for non-developed and developing countries. Decisions Econ Finan 41, 145–162 (2018). https://doi.org/10.1007/s10203-018-0211-6

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