@article {Bruce2, editor = {Bruce, Brian R.}, title = {Editor{\textquoteright}s Letter}, volume = {4}, number = {4}, pages = {2}, year = {2014}, doi = {10.3905/jii.2014.4.4.002}, publisher = {Institutional Investor Journals Umbrella}, issn = {2154-7238}, URL = {https://jii.pm-research.com/content/4/4/2}, eprint = {https://jii.pm-research.com/content/4/4/2.full.pdf}, journal = {The Journal of Beta Investment Strategies} }