@article{resende_zeidan_rega_2014,  title={Price synchronization in retailing: some empirical evidence},  volume={34},  ISSN={0101-3157},  url={https://doi.org/10.1590/S0101-31572014000200007},  DOI={10.1590/S0101-31572014000200007},  number={2},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={Resende, Marcelo and Zeidan, Rodrigo and Rega, Gabriel P.},  year={2014},  month={Apr},  pages={284–293} }