Nonlinear effect of public debt on economic growth: An analysis for emerging countries
DOI:
https://doi.org/10.55532/1806-8944.2020.69Keywords:
Crescimento Econômico, Dívida Pública, Política FiscalAbstract
After the 2008 crisis, there was a process of continuous deterioration in the debt indicators in several emerging countries. As noted in the literature, this deterioration can have negative effects on economic growth, either via an increase in real interest rates or via an increase in future uncertainty. Based on these problems, the present work seeks to analyze the effect of public indebtedness on economic growth for a group of 36 emerging countries for the period from 1990 to 2017. As a form of estimation we use the Generalized Method of Moments with instrumental variables to treat the problem of endogeneity between indebtedness and economic growth.
As a result, we find that indebtedness has a nonlinear effect, in the form of an inverted U, on growth one and five years ahead, with the reversal point, that is, the point at which the effect of indebtedness on growth is maximum, it is between 40-60% of GDP, values significantly lower than those observed for developed countries. In addition, we carried out a series of robustness tests that corroborated both this nonlinear effect of indebtedness on economic growth and the point of reversal.
Finally, we still observe that for countries with higher levels of democracy, the reversal point is higher compared to countries with low levels of democracy and for countries where public investment is high, the relationship between indebtedness and economic growth is positive, that is, greater indebtedness leads to greater economic growth.
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