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.
And during the four years after the end of the bus boycott, Martin Luther King Jr. struggled to build on that victory. Many worried that the civil rights movement had ground to a halt. Then Greensboro changed everything. In the time before Twitter, the rapid spread of the sit-ins was shocking. The first sit-in was an impulsive act, led by college students.