@article{arida_2002,  title={Múltiplos Equilíbrios},  volume={22},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31572002-1363},  DOI={10.1590/0101-31572002-1363},  number={3},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={ARIDA, PERSIO},  year={2002},  month={Jul},  pages={508–517} }