A New Global Method for Measuring Food Self-Sufficiency: Introducing SSFSSR
Published in Agricultural & Food Science
For many years, there has been no unified global method to measure national food self-sufficiency using standardized datasets and a common formula. Existing indicators—such as the conventional cereal-based self-sufficiency ratio—are limited in scope and fail to capture modern food systems.
I developed a new metric, the Supply-Side Food Self-Sufficiency Ratio -Supply side Food Self-sufficiency Ratio (SSFSSR), which was accepted by Agriculture and Food Security (BMC, Q1) in August 2025.
SSFSSR uses FAOSTAT data to calculate annual food self-sufficiency for 64 items, including cereals, livestock products, vegetables, fruits, edible oils, sugar, and aquatic products.
Two major contributions of this study are:
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Development of the Primary Product Conversion Rate (PPCR), enabling the conversion of secondary products into primary equivalents.
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A new finding that lowering PPCR increases a country's food self-sufficiency ratio without increasing actual food production.
This method provides a globally standardized and reproducible approach for policymakers, researchers, and international organizations concerned with food security.
Preprint:
Zenodo: https://doi.org/10.5281/zenodo.13740850
Researcher Square: https://doi.org/10.21203/rs.3.rs-5013312/v2
SSRN: http://dx.doi.org/10.2139/ssrn.4943561
agriRxiv: https://doi.org/10.31220/agriRxiv.2024.00274
Published (Agriculture & Food Security):
https://doi.org/10.1186/s40066-025-00570-z
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Agriculture & Food Security
This is a peer-reviewed open access journal that addresses the challenge of food security.
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