In the case of state price, government management, company monopoly, subcontracting at different levels, and individual taking risks, the company is responsible for contracting, and the individual pays the mortgage risk of 20,000 yuan first, and then bears the risk of rising oil prices, so it is possible to make a profit after working 10 hour a day without accidents. The interest of 20 thousand yuan per car every year will flow into the personal pocket of the manager.