# Active Management and Information Ratio
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## [A Quantitative Approach for Providing Superior Returns and Controlling Risk](http://cslt.riit.tsinghua.edu.cn/mediawiki/images/a/a7/Active_Portfolio_Management_-_A_quantitative_approach_for_providing_superior_treturn_and_controlling_risk.pdf) Richard C. Grinold, Ronald N. Kahn
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2020 [Dispersion and Alpha Conversion](https://www.morganstanley.com/im/publication/insights/articles/dispersion-and-alpha-conversion.pdf) Michael J. Mauboussin, Dan Callahan
How Dispersion Creates the Opportunity to Express Skill
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1st page [The fundamental law of active management](https://jpm.pm-research.com/content/15/3/30) Richard C. Grinold
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## Sharpe and Information
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https://en.wikipedia.org/wiki/Sharpe_ratio
https://en.wikipedia.org/wiki/Information_ratio
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## supplementary
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https://www.panagora.com/assets/JOIM-Active-Risk-and-Information-Ratio.pdf
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https://www.firstquadrant.com/system/files/0011+Thoughts+on+Grinold+and+Kahns+Fundamental+Law+of+Active+Mgmt.pdf
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# Parents
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* Leverage, Uncertainty, and Edge - F⏎