The paperwork discuss about the specific argument brought against encouraging the market's mechanisms in the field of education, who send to the unity's imperative, the educational system's coherence, because the market's mechanisms are by their nature autonomic and a trade market including the educational market, functions better when the number of agents is larger, with equal powers and separated by one another, more autonomic. Any interfering or any mechanism of shaking the autonomy leads to narrowing the market's laws area of action and encouraging the market's mechanism leads to an educational system's decentralization.