Closed-form Solution to an Economic Growth Logistic Model With Constant Migration
DOI:
https://doi.org/10.5902/2179460X19155Keywords:
Solow economic growth model. Logistic labor growth. Migration. Beta function. Appell function.Abstract
This paper considers a Solow-Swan economic growth model with the labor force ruled by the logistic equation added by a constant migration rate, I. We prove the global asymptotic stability of the capital and production per capita. Considering a Cobb-Douglas productionfunction, we show this model to have a closed-form solution, which is expressed in terms of the Beta and Appell F1 special functions. We also show, through simulations, that if I>0, it implies in a smaller capital and product per capita in the short term, but in a higher capital and product per capita in the middle and long terms. In both cases, these per capita variables converge to the same steady-state given by the model without migration. If I<0 the transient behavior is the opposite. Finally, if I=0, we recover the solution for the pure logistic case, involving Gauss' Hypergeometric Function 2F1.
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