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The '''marketplace of ideas''' is the theory that, in a [[free market]] of ideas, bad ideas will be subordinated to good ideas in the long run, as good ideas will win more adherents in the absence of governmental pressure to adopt one idea.

The '''marketplace of ideas''' is the theory that, in a [[free market]] of ideas, bad ideas will be subordinated to good ideas in the long run, as good ideas will win more adherents in the absence of governmental pressure to adopt one idea. The modern concept of the marketplace in democracy and civil society was developed by British philosopher [[John Stuart Mill]] in his famous essay ''[[On Liberty]]''.

==American Free Speech==

==American Free Speech==