GTAP Resources: Resource Display
| GTAP Resource #7900 |
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"How environmentally harmful are agricultural policies? Towards a model-based, cross-country and policy instrument typology of the climate impacts of agricultural support instruments " Authors: Laborde, David and Elsa Olivetti Abstract With public budgets constrained and pressure mounting to accelerate the sustainability transition of agrifood systems, repurposing agricultural support has become a priority in research and policy. Yet reforms often lack a consistent basis for prioritization: impacts differ in magnitude, mechanisms, and distribution across countries. This paper develops an operational, model-based typology of climate-harmful agricultural support that captures heterogeneity across country–instrument combinations and emissions pathways. The typology is built from a systematic assessment of greenhouse gas (GHG) effects using the global computable general equilibrium model MIRAGRODEP, calibrated with the latest AgIncentives information and a reworked GTAP 12 database. We run harmonized counterfactual simulations removing each instrument, one at a time, for each country to isolate marginal impacts while retaining general-equilibrium feedbacks. Additional scenarios assess coordinated multi-country reform by instrument category. To ensure comparability, model structure, baseline, horizon, and emissions scope are held constant across runs. Coverage spans product-specific and non-product-specific measures, input and output support, factor-based payments, and market access instruments. The resulting database supports a data-driven classification of environmentally harmful support using both expected impacts and their dispersion, drawing on decision-making under uncertainty. The typology translates model outputs into reform guidance by identifying instruments that are consistently damaging versus context-dependent, and by flagging where complementary measures are needed to prevent offsetting emissions shifts. Linking instrument design to emissions channels and cross-border spillovers informs prioritization, differentiation, and sequencing of repurposing strategies. |
| Resource Details () | GTAP Keywords | ||||||||||||||||
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- Climate change policy - Land use - Agricultural policies - Global |
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Public Access  PAPER - GTAP Resource 7900 (311.9 KB) Replicated: 0 time(s)Restricted Access No documents have been attached. Special Instructions No instructions have been specified. |
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Last Modified: 4/30/2026 12:56:16 PM
