地下经济又被称为非正式经济、第二经济、隐蔽经济、秘密经济、黑市经济、黑色经济。它的本质特征是逃脱政府监视与控制。因此，在政府的经济统计中，从不包括地下经济的有关数据，在政府缴纳财政收入中，也不包括地下经济创造的收入。中国现阶段的地下经济十分普遍。生产领域 Underground economy is also known as the informal economy, the second economy, covert economy, clandestine economy, black market economy, black economy. Its essential feature is to escape government surveillance and control. Therefore, in the economic statistics of the government, the relevant data of the underground economy are never included, and the incomes created by the underground economy are not included in the government’s fiscal revenue. The underground economy in China at this stage is very common. Production area