About Goro Takahashi
I am Professor Emeritus at Aichi University, Japan, specializing in Chinese agricultural economics, food security, and land systems. I developed the Supply-Side Food Self-Sufficiency Ratio (SSFSSR) and Primary Product Conversion Rate (PPCR), innovative methods for measuring global food security. My research combines historical and empirical approaches, covering Chinese land regimes, rural economy, and international food balance. I am committed to advancing academic and policy discussions on sustainable food systems.
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There has been no unified global method to measure food self-sufficiency. I developed SSFSSR using FAOSTAT to calculate self-sufficiency for 64 items. I also created PPCR, showing that lowering PPCR can raise self-sufficiency without increasing production.