@article {Bernstein5, editor = {Bernstein, Peter L.}, title = {Editor{\textquoteright}s Letter}, volume = {28}, number = {1}, pages = {5}, year = {2001}, doi = {10.3905/jpm.2001.390946}, publisher = {Institutional Investor Journals Umbrella}, issn = {0095-4918}, URL = {https://jpm.pm-research.com/content/28/1/5}, eprint = {https://jpm.pm-research.com/content/28/1/5.full.pdf}, journal = {The Journal of Portfolio Management} }