@article{duarte_ozaki_2019,  title={Pricing Crop Revenue Insurance Using Parametric Copulas},  volume={73},  ISSN={0034-7140},  url={https://doi.org/10.5935/0034-7140.20190015},  DOI={10.5935/0034-7140.20190015},  number={3},  journal={Revista Brasileira de Economia},  publisher={Fundação Getúlio Vargas},  author={Duarte, Gislaine Vieira and Ozaki, Vitor Augusto},  year={2019},  month={Jul},  pages={325–343} }