Capitalism and socialism is a false ideological dichotomy. Mr. Beat has a good video on this. We live in a mixed economy.
Not to fall into the "communism is when free stuff" trope, but...
Most people like public schools, public roads, public transit, public parks, and public libraries.
The benefits of public goods are well known. This is the whole field of public finance economics.
Market failures are also well-known. Negative externalities, moral hazard, adverse selection etc. Hence carbon taxes, congestion charges, and universal healthcare.
In other words, sometimes free trade capitalism works, other times it doesn't, and it's not a mystery when. Marx's whole spiel about contradictions is wrong and largely throws the baby out with the bath water, so to speak.
The notion of a "mixed economy" is really orthogonal to Marx arguments over capitalism, though it is relevant to other socialist ideologues. To Marx, what mattered was the dominant "mode of production", and the result power dynamic resulting from that. The existence of public services doesn't change that. A socialist system with a free market remains socialist. A capitalist system with public services remain capitalist. Calling either "mixed" doesn't alter what the dominant mode of production is.
As for Marx "spiel about contradictions", all he did was take capitalists seriously on the notion that competition in a truly free market will tend to drive down margins once the market is fully exploited.
One can certainly disagree with his conclusions over the consequences of that - e.g. whether societies will succeed in continuing to mitigate the negative effects, or end up in crises, but the core theory of Marx on capitalism was that competition and markets works as advertised.
The existence of different modes of production is an absurd and false dichotomy. Worker co-ops exist today. People are free to make them, and join them if the co-ops will take them.
And by socialist system with a free market do you mean one where private ownership of the modes of production remains legal, but simply isn't chosen, or do you consider banning private ownership compatible with free markets?
> And by socialist system with a free market do you mean one where private ownership of the modes of production remains legal, but simply isn't chosen, or do you consider banning private ownership compatible with free markets?
I would consider public ownership but not state ownership compatible with free markets. The only essential element for free markets is competition with sufficiently low regulation. Some socialist ideologies are inherently incompatible with markets, some are not. E.g. libertarian Marxism and other form of libterian socialism are, because they reject centralised government entirely.
Not to fall into the "communism is when free stuff" trope, but...
Most people like public schools, public roads, public transit, public parks, and public libraries.
The benefits of public goods are well known. This is the whole field of public finance economics.
Market failures are also well-known. Negative externalities, moral hazard, adverse selection etc. Hence carbon taxes, congestion charges, and universal healthcare.
In other words, sometimes free trade capitalism works, other times it doesn't, and it's not a mystery when. Marx's whole spiel about contradictions is wrong and largely throws the baby out with the bath water, so to speak.