A dynamic for production economies with multiple equilibria

Elvio Accinelli; Humberto Muñiz

doi:10.3934/jdg.2021002

Article Contents

2021, Volume 8, Issue 1: 69-99. Doi: 10.3934/jdg.2021002

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A dynamic for production economies with multiple equilibria

Elvio Accinelli^1, and
Humberto Muñiz^2, ,

1.
Universidad Autónoma de San Luis Potosí, Facultad de Economía, San Luis Potosí, 78213, México
2.
Instituto Potosino de Investigación Científica y Tecnológica, División de Control y Sistemas Dinámicos, San Luis Potosí, 78216, México

^* Corresponding author: Humberto Muñiz
^* Corresponding author: Humberto Muñiz

Received: August 31, 2020

Revised: November 30, 2020

Early access: January 2021

Published: January 2021

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Abstract

In this article, we extend to private ownership production economies, the results presented by Bergstrom, Shimomura, and Yamato (2009) on the multiplicity of equilibria for the special kind of pure-exchanges economies called Shapley-Shubik economies. Furthermore, a dynamic system that represents the changes in the distribution of the firms on the production branches is introduced. For the first purpose, we introduce a particular, but large enough, production sector to the Shapley-Shubik economies, for which a simple technique to build private-ownership economies with a multiplicity of equilibria is developed. In this context, we analyze the repercussions on the behavior of the economy when the number of possible equilibria changes due to rational decisions on the production side. For the second purpose, we assume that the rational decisions on the production side provoke a change in the distribution of the firms over the set of branches of production.

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Mathematics Subject Classification: Primary:91B50, 91B55;Secondary:91B38.

Citation:

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Figure 1. Example 1: $ \omega=\left((5,2),(2,3)\right) $, $ f(x)=5.5x-\dfrac{1}{2}x^2 $, equilibria prices at $ p_1=1/2 $, $ p_2=1 $, $ p_3=2 $

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Figure 2. Example 2: $ r = 7/9 $ equilibrium price at $ p_1 = 0.5 $ is singular

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Figure 3. Example 4: equilibria prices at $ p\approx 0.154648, $ $ p=1 $ and $ p=6.194385 $

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Figure 4. Example 5: equilibria prices at $ p_1\approx 0.1792472498915, $ $ p_2=2 $ and $ p_3\approx 2.6915745984313 $

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Figure 5. Example 6: equilibria prices at $ p_1\approx 0.125623594624, $ $ p_2=1 $ and $ p_3\approx 1.0747180810635 $. Distribution $ (10,40) $

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Figure 6. Example 6: equilibria prices at $ p_1\approx 0.17025278062395, $ $ p_2 \approx 0.6155470462368 $ and $ p_3\approx 1.5223658675626 $. Distribution $ (11,39) $

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Figure 7. Example 7: Blue line represents the demand function $ x_2^1(p) = \phi_1(p^{-1}) $, red line represent right hand side of equation 26. Distribution $ (12,38) $

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Figure 8. Example 7: Blue line represents the demand function $ x_2^1(p)=\phi_1(p^{-1}) $, red line represent right hand side of equation 26. Distribution $ (14,36) $

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Figure 9. Profit analysis example 7: Blue line represents $ \pi_1(p) $, while red line represent $ \pi_2(p) $

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Figure 10. Profit table for example 7

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Figure 11. Utility table for example 7

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References

[1]	E. Accinelli and E. Covarrubias, Evolution and jump in a Walrasian framework, J. Dyn. Games, 3 (2016), 279-301. doi: 10.3934/jdg.2016015.
[2]	T. C. Bergstrom, K.-I. Shimomura and T. Yamato, Simple economies with multiple equilibria, B. E. J. Theor. Econ., 9 (2009), 31pp. doi: 10.2202/1935-1704.1609.
[3]	E. Dierker, Two remarks on the number of equilibria of an economy, Econometrica, 40 (1972), 951-953. doi: 10.2307/1912091.
[4]	T. Hens and B. Pilgrim, The index-theorem, in General Equilibrium Foundations of Finance, Theory and Decision Library, 33, Springer, Boston, MA, 2002. doi: 10.1007/978-1-4757-5317-2_4.
[5]	T. J. Kehoe, An index theorem for general equilibrium models with production, Econometrica, 48 (1980), 1211-1232. doi: 10.2307/1912179.
[6]	T. J. Kehoe, Multiplicty of equilbria and compartive statics, Quart. J. Econom., 100 (1985), 119-147. doi: 10.2307/1885738.
[7]	A. Mas-Colell, The Theory of General Economic Equilbrium. A Differential Approach, Econometric Society Monographs, 9, Cambridge University Press, Cambridge, 1989.
[8]	P. A. Samuelson, Foundations of Economic Analysis, Harvard University Press, Cambridge, Mass., 1947.
[9]	L. Shapley and M. Shubik, An example of a trading economy with three competitive equilibria, J. Political Economy, 85 (1997), 873-875. doi: 10.1086/260607.