SPIQ-FS documentation

The SPIQ-FS generic dataset version 0 contains national estimates of marginal damage costs in 2020 USD PPP (international dollars) for the emission or production in 2020 of 14 impact quantities for 158 countries. Marginal damage costs in the generic set are calculated under the assumption that future economies developed according to the IPCC shared socioeconomic pathway SSP2.

The SPIQ-FS documentation and outputs are separated into Annexes.

The SPIQ-FS dataset is built from the SPIQ-FS model. The documentation in Annex A describes the individual cost models and the caveats of the modelling. Annex A describe the impact pathways, which is the pathway by which a unit of emission, or resource use, or lost habitat, or kg/capita/day of consumption, leads to changes in flows of natural, human, produced, or financial capital, which effects the gross domestic production in purchasing power parity terms terms of a present or future economy. Annex A is provides rationale on the current level of production of the impact quantities associated to the food system, and why marginal increases in the quantities are associated to food system impacts.

Annex B describes the joint sampling procedure using information on the interactions between the impact pathways described in Annex A.

Annex C describes a set of socio-economic inputs into the SPIQ-FS model that can be used to couple the cost models to macro-economic and socio-economic changes between counterfactuals, including over time into the future. Annex C gives an overview of the cost models and common components

Annex S contains the dataset generated by a build of the SPIQ-FS model. The dataset generated by the generic build can be downloaded under the CC-BY-4.0 license. Appendices in the Annex A documentation show calculation of marginal cost sets for illustration. The build of the generic dataset on this page is the updated set of generic marginal costs.

No warranties are given on the suitability or accuracy of the documentation for your intended use. By using the SPIQ-FS dataset or documentation FoodSIVI nor the University of Oxford endorses you or your intended use.

Annex A

Download Annex A – GHG “Estimations of marginal social costs for GHG emissions” (1.9 MB .pdf file)

Download Annex A – Water “Estimation of marginal damage costs from water scarcity due to blue water withdrawal” (2.3 MB .pdf file)

Download Annex A – Land use “Estimation of marginal damage costs for loss of ecosystem services from land-use change or ecosystem degradation” (5.0 MB .pdf file)

Download Annex A – Nitrogen “Estimation of marginal damage costs from reactive nitrogen emissions to air, surface waters and groundwater” (5.0 MB .pdf file)

Calculation of the marginal damage costs for 1 person undernourished in 2020 is described in Annex A – Water.

Annex B

Download Annex B “Joint sampling of marginal damage costs” (1 MB .pdf file)

Annex C

Download Annex C “Adjustments to SPIQ FS marginal damage costs to estimate damages in future scenarios” (2.2 MB .pdf file)

Build of the generic dataset

Annex A – Land use describes the generetation of the dataset of ecosystem service valuations used in Annex A – Nitrogen. The Forest Habitat Loss, Forest Habitat Return, Other Land Habitat Loss, and Other Habitat Return marginal damage costs in the generic SPIQ-FS dataset version 0 are built from Annex A – Land as described in the notes on the build of the generic dataset.

The cumulative average income shortfall from the extreme poverty $1.90 / day (2011 PPP) threshold of a person in extreme poverty in 2020 in the generic SPIQ-FS dataset version 0 is calculated from World Bank data as described in the notes on the build of the generic dataset.