PoblachtObrithe

You're very into economic democracy, that is cooperatives and workers' self management, do you think cooperatives are enough to do away with capitalism or do you think that there will need to be a mass movement of workers(Revolution) to undo the system and transform society on a socialist basis?

So what of Marx's economic theories in particular do you think are relevant today, especially in understanding the Great Recession?

Thanks for the answer, of course we can't forget the political aspect of Marx's political economy, but I meant more in how do we apply our understanding of Marx's economic analyses(Like the Tendency of the Rate of Profit to Fall, Labour Theory of Value etc) and so on - do you think these are all still relevant, or is there a point of divergence between the general economic framework Marx provided and your own economic analyses(for example many Marxists adhere to an underconsumptionist crisis theory)?

You'd think for someone who prides themselves on their economic knowledge you'd know what a qualitative difference is.

The Communist Manifesto was an extremely small part of Marx's overall body of writing. If you want Marx's analysis on practical use of the state you want to read Critique of the Gotha Programme, keep in mind that it's an old text and so it can't be applied word for word to the modern era(Same with the Manifesto as well). He did write some other stuff(As another user wrote above) but comparative to his broader writings they're insignificant in a broader appraisal of his theories, especially as they're expounded/developed upon at a much deeper level by later Marxists.

Additionally deeper theoretical analysis comes from Marx's close collaborator, Freidrich Engels, with The Origin of the Family, Private Property and the State. He used Marx's own notes as the basis for it(As he did for many things), so you get a strong idea o what Marx's position on it was there.