@article {Guerard48, author = {John B.. Guerard, Jr and Makoto Takano}, title = {The Development of Mean-Variance-Efficient Portfolios in Japan and the U.S.}, volume = {1}, number = {2}, pages = {48--51}, year = {1992}, doi = {10.3905/joi.1.2.48}, publisher = {Institutional Investor Journals Umbrella}, issn = {1068-0896}, URL = {https://joi.pm-research.com/content/1/2/48}, eprint = {https://joi.pm-research.com/content/1/2/48.full.pdf}, journal = {The Journal of Investing} }