The paper arise from the troubles of "moderns" economists for understanding how Marx and the classical economists thought about the formation of prices. On the base of the distinction between reductionist microeconomics and systemic microeconomics, it compares that mode with the mode of thinking of neoclassical theory. For that, investigate three types of prices formation representations: the market as coherence, the market as equilibrium and the market as process. It shows that the "old" mode of thinking the working of the market can be reconstructed on the base of computable economics. Then the market - while appearance of capitalist mode of production - is theoretically described as an algorithm, that is, as markomata.
formation of prices; systemic microeconomics; neoclassical economic theory; Classical Political Economy; markomata