@article{carvalho_2001,  title={Políticas Públicas e Competitividade da Agricultura},  volume={21},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31572001-1225},  DOI={10.1590/0101-31572001-1225},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={CARVALHO, MARIA AUXILIADORA DE},  year={2001},  month={Jan},  pages={123–146} }