改革开放以来，我国的经济体制已发生了深刻的变化：十二大以前我们实行的是纯粹的计划经济体制，十二大报告中提出建立有计划的商品经济体制，十三大提出建立“计划为主、市场调节为辅”的经济体制，十四大明确提出建立社会主义市场经济体制，十五大又提出建立“以公有制... Since the reform and opening up, China’s economic system has undergone profound changes: We implemented a purely planned economic system before the 12th CPC National Congress. The 12th CPC National Congress proposed that a planned commodity economic system should be established and the 13th CPC National Congress proposed to establish a “ Based, supplemented by market regulation, ”the 14th National Congress of the Communist Party of China clearly proposed the establishment of a socialist market economic system. The 15th National Congress of the Communist Party of China also proposed to establish a“ public ownership system. ”