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Ramsey model of optimal growth with Allee effect

Zihan Wang & Vladimir Shikhman

Journal of Industrial and Management Optimization2026https://doi.org/10.3934/jimo.2026034article
AJG 1ABDC B
Weight
0.50

Abstract

For the Ramsey model of economic growth, which describes the optimal allocation of consumption and saving over time, we assume the underlying population dynamics due to the Allee effect. The so-called Allee threshold separates two regimes from each other. If starting below the threshold, the population decreases to zero. Above this threshold, it gradually saturates. We show that the corresponding consumption per labor stabilizes at two different levels. As for our main result, the steady state consumption per labor is higher in cases of population's decrease rather than of saturation. This is in line with our previous results on the capital per labor for the Solow–Swan model of economic growth with the Allee effect. However, the comparison of consumption-to-capital ratios at the both steady states crucially depends on the curvature of the production function.

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https://doi.org/https://doi.org/10.3934/jimo.2026034

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@article{zihan2026,
  title        = {{Ramsey model of optimal growth with Allee effect}},
  author       = {Zihan Wang & Vladimir Shikhman},
  journal      = {Journal of Industrial and Management Optimization},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.3934/jimo.2026034},
}

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