In doing so, socialist, labor, and social democratic parties contributed to — though they were not the sole authors of — the development of the mixed economies that exist in advanced countries today. If these mixed economies are a far cry from the centralized systems that were created in Eastern Europe under Leninist rulers, they are also very far from the classical liberal model of a self-regulating market economy. If we look to the most advanced economies for guidance, then we should not allow ourselves to be misled by dogma about "free markets."
After the Revolution? (1970; 1990) - Ch. 3 : Democracy and Markets