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.
These groups became the grassroots organizers of future sit-ins at lunch counters, wade-ins at segregated swimming pools, and pray-ins at white-only churches. By sitting in protest at an all-white lunch counter in Greensboro, North Carolina, four college students sparked national interest in the push for civil rights.he civil rights sit-in was born. No one participated in a sit-in of this sort without seriousness of purpose. The instructions were simple: sit quietly and wait to be served. Often the participants would be jeered and threatened by local customers. Sometimes they would be pelted with food or ketchup.