This paper quantifies changes in the trend of greenhouse gas footprints associated with household consumption covering a period of 20 years. We combine greenhouse gas emissions related to the supply chain (embedded) and consumption (direct) with households' consumption expenditures from the sample survey of income and expenditure (EVS), and present the first comprehensive study on trends in greenhouse gas footprints of German households. We find a decay in changes in GHG footprints as a response to increases in household expenditure over time. In addition, our estimated own-price elasticities for electricity and heating indicate an increasing demand response to higher energy prices. However, this does not translate to a clear decreasing trend in the total GHG footprint because of the role of changes in the demand of other commodities and changes in expenditure levels across years. Further, comparing results of the more advanced EASI demand system with those of the more widely used QUAIDS approach, we find sizable differences.

本文量化了 20 年期间与家庭消费相关的温室气体足迹趋势变化。我们将与供应链（嵌入式）和消费（直接）相关的温室气体排放与收支抽样调查 (EVS) 中的家庭消费支出相结合，首次对德国家庭温室气体足迹趋势进行了综合研究. 我们发现，随着时间的推移，随着家庭支出的增加，温室气体足迹的变化会出现衰减。此外，我们估计的电力和供暖自有价格弹性表明，需求对能源价格上涨的反应越来越强烈。然而，由于多年来其他商品需求变化和支出水平变化的作用，这并没有转化为温室气体总足迹的明显下降趋势。此外，将更先进的 EASI 需求系统的结果与更广泛使用的 QUAIDS 方法的结果进行比较，我们发现了相当大的差异。