“地下经济”又被称之为不透明的“灰色经济”,实际上是利用国家经济转轨时期经济法规不健全、经济活动不正常不规范的机会进行的经济犯罪活动。主要有:1.偷税、漏税、走私、盗窃国家资产。2.收受贿赂、行贿、贪污。3.从事未经登记注册的服务或营业。4.进行法律所不允许的交易。5.从事未经登记、未得到许可的生产或劳务活动。6.签订未经申报、登记和允许的交易合同。 据波兰《共和国报》1994年4月18日发表 The “underground economy” is also called “opaque” gray economy. It is actually an economic criminal activity that takes advantage of the imperfect economic laws and regulations and abnormal economic activities during the period of national economic transition. Mainly: 1. Tax evasion, tax evasion, smuggling, theft of state assets. 2. Accept bribes, bribe, corruption. 3. Engaged in unregistered services or business. 4. Do not allow the law of the transaction. 5. Engaged in unregistered, unlicensed production or labor service activities. 6. Signed without the declaration, registration and permission of the transaction contract. According to the Polish “Republic” published in April 18, 1994