The two-track system is an institutional arrangement adopted by China in the transition from planned economy to market economy, which has been widely used in various economic fields
Up to now, the markets of all industrial products and the vast majority of agricultural products in China have been completely liberalized, but the two-track system in the grain field still exists, which reflects the complexity and particularity of the reform of the grain circulation system
In the period of planned economy, two-track system was widely adopted in industrial products