Do not be fooled by the present tense: this is Ming, not Maoist, China that Balazs is describing. The behaviour of Hongwu, the first of the Ming emperors, is an object lesson in how to stifle the economy: forbid all trade and travel without government permission; force merchants to register an inventory of their goods once a month; order peasants to grow for their own consumption and not for the market; and allow inflation to devalue the paper currency 10,000-fold.