In the mid-1980s, Vietnam initiated the 'Đổi Mới' economic reforms, transitioning its economy from a highly centralized command system, where agricultural quotas and prices were set by the state, to a market-based system where prices are determined by supply and demand.
Evaluate, using one or more economic diagrams, the extent to which a country's citizens benefit when the allocation of resources is shifted from a state-directed command mechanism to a price-signal mechanism.