Guidelines for Economic Impact Analysis with IMPLAN

Excerpts: NRCS economists typically use IMPLAN to estimate the economic impact of NRCS conservation expenditures. IMPLAN’s detail, scalability, and ease of use make it a flexible model that can generate results for any size project. Used properly, IMPLAN provides valuable information on the support that NRCS expenditures provide to local, State, and regional economies. This technical note was developed to guide NRCS staff in using IMPLAN appropriately and consistently. The diversity of NRCS conservation programs and projects to which IMPLAN can be applied makes it difficult to define a single recipe to follow for all analyses. So, this guidance focuses on general principles that need to be followed when conducting economic impact analysis with IMPLAN. It assumes that readers are familiar with IMPLAN and how to use it.

节选内容：美国自然资源保护局（Natural Resources Conservation Service，NRCS）的经济学家通常使用IMPLAN模型来估算NRCS保护支出的经济影响。IMPLAN模型凭借其细节完备性、可扩展性与易用性，成为一款灵活的分析模型，可针对任意规模的项目生成分析结果。若使用规范得当，IMPLAN可提供有关NRCS支出对地方、州级及区域经济所提供支撑的宝贵信息。本技术说明旨在指导NRCS工作人员规范且一致地使用IMPLAN。鉴于IMPLAN可应用的NRCS保护项目类型多样，难以制定适用于所有分析的统一操作流程，因此本指南聚焦于使用IMPLAN开展经济影响分析时需遵循的通用原则。本说明假定读者已熟悉IMPLAN及其使用方法。