The commercial law of the Qin and Han Dynasties(BC 209-AD 220) regulated the business activities, but in essence, it served the feudal self-supporting economy. The commercial law adhered to the policy of emphasizing agriculture and restraining business so that it achieved the purpose of driving peasants back to the agriculture by restraining the businessman's social status and it would be helpful to consolidate the feudal economy by taxing on business duty, reducing the field duty. The commercial law made sure that business adhered to the pa...