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.
sit (third-person singular simple present sits, present participle sitting, simple past sat, past participle sat or (archaic, dialectal) sitten) A painting of a man sitting. (intransitive, of a person) To be in a position in which the upper body is upright and supported by the buttocks. 1460-1500, The Towneley PlaysË He is so fair, without lease, he seems full well to sit on this. After a long day of walking, it was good just to sit and relax. (intransitive, of a person) To move oneself into such a position.