The second part is based on the definition of the concept, focusing on some common research methods about how to measure the scale of the non observed economy.
第二部分在对未观测经济概念进行界定的基础上，着重介绍了几种常见的未观测经济规模的研究方法。
The second part is based on the definition of the concept, focusing on some common research methods about how to measure the scale of the non observed economy.
第二部分在对未观测经济概念进行界定的基础上，着重介绍了几种常见的未观测经济规模的研究方法。
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