This is actually the most misled conclusion. What China has experimented since 1978 is capitalism. Everybody knows it. Due to the obviousness, Deng prohibited discussions on whether it is capitalism or socialism and invented a self contradictory term "socialistic market economy" to brainwash the whole population. Any one who has a little bit education on economy would see it through. That is why discussion was prohibited. And the result is that you see the success of capitalism as the one of socialism. It worked perfectly I would say.