The mainstream view of capitalism is that it is a "natural" system that emerges almost automatically, as long as the government doesn't intervene and merely fights criminals and so forth.
But I heard David Graeber, and some other people as well I think, casually say that some sociologists (which he supports) think that capitalism was actively created and promoted by states, and would not have existed otherwise.
Do you know who formulated this perspective/theory? Graeber himself didn't say it, because he was speaking only casually (I read it somewhere in the book "Debt: the first 5000 years".