From a very interesting article that shows that Capitalism has caused hundreds of millions of deaths over the last one hundred years alone:
Almost certainly, the free market has caused more deaths, than the historical mass murders appropriated by liberals as a historical justification for it. More than Hitler, Stalin and Pol Pot, the unholy trinity used to frighten us into accepting liberalism. If there is to be a symbol of the negative consequences of European civilisation, then Wall Street is as appropriate as Auschwitz. Both are part of the 'European Heritage', which the EU and national governments so perversely glorify.
What has changed in the last 15 years, to allow me to write this? For the first time in history, several countries have transferred directly, from a non-market to a liberal market economy. They stayed at the same technological level, and kept full statistical records of the effects. It is now possible, for the first time, to estimate the free-market contribution to death rates. These effects are significant, and huge numbers of people are involved. In Russia crude death rates rose from 10,7 per 1000 in 1989 to 15,8 per 1000 in 1994. Comparing Europe in 1500 with Europe in 2000 will not show the effects of the free market: society and technology were fundamentally different in 1500. But Russia in 1994 had the same technology, the same urbanisation, the same infrastructure as Russia in 1989. What changed was that a centrally-planned regime collapsed, and a liberal market system replaced it.
If the free market has caused about one-third of all deaths, in market economies, over the entire period of their existence, then the market has killed hundreds of millions of people. More than all wars, and more than the impact of a one-kilometre meteorite. Probably, the shock of a transition sharply increases death rates, and the long-term market death rate would be lower. But in that case, sudden imposition of neo-liberal policies would increase market death rates, in countries which already have a free market.
How many people did Thatcher kill?