@article{kregel_2011,  title={Structured derivatives contracts, hedging exchange appreciation and financial instability: Brazil, China and Korea},  volume={31},  ISSN={0101-3157},  url={https://doi.org/10.1590/S0101-31572011000500014},  DOI={10.1590/S0101-31572011000500014},  number={5},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={Kregel, Jan},  year={2011},  pages={853–857} }