现在,讲讲经济、税源调查研究工作。在这里,主要讲:经济、税源调查研究和税收计划的关系;经济、税源调查研究的内容;经济、税源调查研究的一般做法;以及调查研究工作中应当注意的几个问题等四个题目。(这一专题由于只讲经济、税源调查研究和税收计划的关系问题,故对经济、税源调查研究和税收政策的关系这里不讲) Now, talk about economy, tax source investigation and research work. Here, the main topics are: economy, the relationship between the source tax investigation and tax planning; the content of the economic and tax source investigation and research; the general practice of economy and source tax investigation and research; and the four questions that should be noticed in the investigation and research work. (This topic does not talk about the relationship between economy, tax source investigation and taxation policy and tax policy because it only talks about the relation between economy, tax source investigation and tax planning)