@article{ramalho_ribeiro_2022,  title={EX-POST EVALUATION OF MEAN-VARIANCE CARTEL FILTERS},  volume={26},  ISSN={1415-9848},  url={https://doi.org/10.1590/198055272622},  DOI={10.1590/198055272622},  journal={Revista de Economia Contemporânea},  publisher={Instituto de Economia da Universidade Federal do Rio de Janeiro},  author={Ramalho, Matheus Humberto Migliari and Ribeiro, Eduardo Pontual},  year={2022},  pages={e212622} }