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.
The Nashville sit-ins were influenced by the Greensboro sit-ins in North Carolina (see Greensboro, NC, students sit-in for U.S. Civil Rights, 1960). The sit-ins played a pivotal role in the Shaw University sit-ins, and were used as models in other desegregation actions.