the senior cpc leaders hold that reform and opening up over the past two years have been focused on deng xiaoping 's remarks during his south china tour , the establishment of the socialist market economy structure defined at the 14th cpc national congress , and the decision on the `` 50 measures '' adopted at the third plenum of the 14th cpc central committee , all of which have organically formed the `` three major signposts of china 's economic direction '' in this century , thus effecting a historic transition from a planned economy structure to a market economy structure .