Rebound effects of food waste prevention: Environmental impacts.

Food waste prevention across the food supply chain has been addressed by the European Union (EU) as the top priority to reduce farm-to-fork impacts. Despite the environmental benefits of food waste prevention are widely acknowledged, life cycle assessments usually do not account for rebound effects, the inclusion of which may decrease or even cancel out the expected environmental savings. Rebound effects are understood as the re-spending of accrued monetary savings, determined by the implementation of food waste prevention initiatives, either on the same product (i.e. direct effects - food) or on other products and/or services (i.e. indirect - non-food) including economy-wide effects (macroeconomic rebound effects). Macroeconomic rebound effects were quantified by means of the global equilibrium model Fidelio and were then converted into environmental impacts by performing an environmentally extended input-output analysis based on the assessment method Environmental Footprint 3.0. From an environmental and an economic perspective, it was found that food waste prevention initiatives across the entire food supply chain were beneficial, but efforts targeting households should be prioritised as the largest potential savings were obtained at this stage. Prevention initiatives implemented at households were associated with potential savings of up to 1 t CO2-eq. t-1, which was reduced to a potential saving of 0.6 t CO2-eq. t-1, corresponding to a 38 % decrease, when accounting for macroeconomic rebound effects. Finally, our results highlighted the importance of accounting for adjustment costs in the production stages of the food supply chain.

Bridging between economy-wide activity and household-level consumption data: Matrices for European countries.

This dataset represents bridging matrices between two different data classification systems: consumption by purpose (COICOP) and products by activity (CPA). While the former classification is used in household budget and expenditure surveys, the latter represents the industry sector dimension that is typically adopted in national accounts and input-output tables. We collect input data from Eurostat on total household consumption for 35 COICOP and 63 CPA categories for the year 2015. Based on these data, we construct bridging or concordance tables for 30 European countries using recently developed matrix balancing techniques. The resulting tables enable data conversion between consumption- and production-based statistics, facilitating research that integrates macroeconomics, multi-sectoral international trade and heterogeneous agents in household-level expenditure micro-data. Although they are a necessary input in several types of research, they are often constructed on an ad hoc and region-specific basis and not shared publicly. As such, making this dataset available will be useful for computable general equilibrium and input-output models and for carbon footprint and life cycle analyses that incorporate rich consumption micro-data, for instance to shed light on distributional aspects of climate and energy policies. Furthermore, by eliminating a barrier raised by differences in statistical classifications, this dataset may foster collaboration between different research teams and may facilitate soft-linking between complementary analytical tools used for policy support.