地下经济是经济主体有意或无意地逃避政府管制,从而处于国家正式统计和监管以外的各种经济活动。采用通货需求模型方法测算,中国地下经济规模在1979-2009年介于0.78%-23.28%之间。税收负担、政府管制以及腐败问题是地下经济活动的主要原因,由于信息技术的发展和对外开放的深入,地下经济活动呈现出更多的表现形式,管理难度也在不断加大。虽然地下经济活动可能对官方经济存在正面效果,但从长远来看,地下经济活动严重破坏了正常的市场经济秩序,导致社会资源的畸形化配置,扭曲了经济信息,削弱了政府税收,加剧了现阶段中国居民收入的差距。 Underground economy is the main body of the economy, consciously or unconsciously evade government control, which is in the country’s official statistics and supervision of various economic activities. Using the method of currency demand model, China’s underground economy was between 0.78% -23.28% in 1979-2009. Tax burden, government regulation and corruption are the major causes of underground economic activities. Due to the development of information technology and deepening of the opening up, the underground economic activities have shown more manifestations and management difficulties are also increasing. Although underground economic activities may have a positive effect on the official economy, in the long run underground economic activities have seriously damaged the normal market economic order, distorted social resources, distorted economic information, weakened government revenue and aggravated The current income gap between Chinese residents.