The current availability of longer series of input-output tables, as well as the release of global input-output databases, has fostered a growing literature analyzing changes in the economic structure and their drivers. In this paper, we take advantage of these time-series by proposing a methodology designed to trace the contribution of different drivers of the change in interindustrial relationships over time. Based on the Temporal Leontief Inverse (TLI), the Extended TLI (ETLI) decomposes the economy-wide effects of changes in direct interindustrial links between years, isolating the impact of different determinants of economic (environmental, energy, etc.) spillovers according to the interests of the researcher. For example, one can explore how the multipliers of a particular industry were affected by changes in technology of other sectors and in the own sector; by changes in trade patterns in specific countries; by indirect changes in intraregional production chains in foreign nations; etc. The ETLI is illustrated by uncovering certain hidden effects not captured in a previous application of the original TLI to the Chicago region between 1980-1997.

目前更长系列的投入产出表的可用性，以及全球投入产出数据库的发布，促进了越来越多的文献分析经济结构的变化及其驱动因素。在本文中，我们通过提出一种旨在追踪不同驱动因素对产业间关系随时间变化的贡献的方法来利用这些时间序列。基于时间里昂蒂夫逆 (TLI)，扩展 TLI (ETLI) 分解了年份之间直接产业间联系变化对经济范围的影响，隔离了经济（环境、能源等）溢出的不同决定因素的影响。研究人员的利益。例如，可以探索特定行业的乘数如何受到其他行业和本行业技术变化的影响；通过特定国家贸易模式的变化；通过外国区域内生产链的间接变化；等。通过揭示某些隐藏的影响来说明 ETLI，这些影响在 1980-1997 年间将原始 TLI 应用于芝加哥地区时没有捕捉到。