Many people involved in politics will soon discover that Marxist groups (particularly Leninist ones) organise "debates" about anarchism. These meetings are usually entitled "Marxism and Anarchism" and are usually organised after anarchists have been active in the area or have made the headlines somewhere.
In order to answer this question, we must first have to point out that "actually existing capitalism" tries to manage unemployment to ensure a compliant and servile working class. This is done under the name of fighting "inflation" but, in reality, it about controlling wages and maintaining high profit rates for the capitalist class. Market discipline for the working class, state protection for the ruling class, in other words. As Edward Herman points out:
The business cycle is the term used to describe the boom and slump nature of capitalism. Sometimes there is full employment, with workplaces producing more and more goods and services, the economy grows and along with it wages. However, as Proudhon argued, this happy situation does not last:
Capital concentration, of course, does not mean that in a given market, dominance will continue forever by the same firms, no matter what. However, the fact that the companies that dominate a market can change over time is no great cause for joy (no matter what supporters of free market capitalism claim). This is because when market dominance changes between companies all it means is that old Big Business is replaced by new Big Business:
As noted in section C.1.4, the standard capitalist economic model assumes an economy made up of a large number of small firms, none of which can have any impact on the market. Such a model has no bearing to reality: