Mean variance analysis is a component of modern portfolio theory, which assumes investors make rational decisions, and that for increased risk they expect a higher return. Next Up.
sitâ²-in`. 1. an organized passive protest against racial segregation in which the demonstrators occupy seats prohibited to them in public places. 2. any organized protest in which the demonstrators occupy and refuse to leave a public place.
1 4 [intransitive] to have an official position as something or as a member of something sit as something He was sitting as a temporary judge. 2  They both sat as MPs in the House of Commons. 3  sit in/on something She sat on a number of committees.