idea of free-markets succeeded first, and then special events catalyzed a complete change of socio-political policy in countries around the world] by Friedrich Hayek’s The Road to Serfdom. Herman Finer, a Fabian socialist, published a rebuttal in his The Road to Reaction in 1946. Hayek called Finer's book "a specimen of abuse and invective which is probably unique in contemporary academic discussion". In his review (collected in The Present as History, 1953) Marxist Paul Sweezy joked that Hayek would have you believe that if there was an over-production of baby carriages, the central planners would then order the population to have more babies instead of simply warehousing the temporary excess of carriages and decreasing production for next year. The cybernetic arguments of Stafford Beer in his 1973 CBC Massey Lectures, Designing Freedom – that intelligent adaptive planning can increase freedom – are of interest in this regard, as is the technical work of Herbert A. Simon and Albert Ando on the dynamics of hierarchical nearly decomposable systems in economics – namely, that everything in such a system is not tightly coupled to everything else. Mises Institute economist Walter Block has observed critically that while The Road to Serfdom makes a strong case against centrally planned economies, it appears only lukewarm in its support of a free market system and laissez-faire capitalism, with Hayek even going so far as to say that "probably nothing has done so much harm to the liberal cause as the wooden insistence of some liberals on certain rules of thumb, above all the principle of laissez-faire capitalism". In the book, Hayek writes that the government has a role to play in the economy through the monetary system (a view that he later withdrew), work-hours regulation, social welfare, and institutions for the flow of proper information. Through analysis of this and many other of Hayek's works, Block asserts that: "in making the case against socialism, Hayek was led into making all sort of compromises with what otherwise appeared to be his own philosophical perspective – so much so, that if a system was erected on the basis of them, it would not differ too sharply from what this author explicitly opposed". Criticism Jeffrey Sachs argues that empirical evidence suggests welfare states, with high rates of taxation and social outlays, outperform the comparatively free-market economies. William Easterly wrote a rebuttal criticizing Sachs for misrepresenting Hayek's work and for