CUBA's leaders have often tantalised Westerners with promises of liberalisation, only to retreat back into the island's stagnant planned economy.
He first introduced some elements of market economy, hoping to juxtapose planned economy and market economy.
Vietnam's leaders are already discovering that it is hard to run a thriving market economy with the methods that suited a planned economy.
Slovakia has mastered much of the difficult transition from a centrally planned economy to a modern market economy.
