How many people does it take to oust a political leader?

Article Link:

Discussion posted by: Arye ben-Shaoul

Which are more effective, violent or non-violent protests? And how big does a protest have to be, to drive a political leader out of office? One researcher, who has studied these questions carefully, thinks 3.5% of the population will nearly always succeed. The Solidarity Movement in Poland in the 1980s, led by the unions; the long-running anti-apartheid movement in South Africa; the overthrow of Serbian President Slobodan Milosevic; the Jasmine Revolution against Tunisia’s president, Zine al-Abidine Ben Ali, igniting the so-called Arab Spring… These are all examples within living memory of popular movements that culminated in substantial political change. The latest one making the news is in Belarus