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With research staff from more than 60 countries, and offices across the globe, IFPRI provides research-based policy solutions to sustainably reduce poverty and end hunger and malnutrition in developing countries.

Liangzhi You

Liangzhi You is a Senior Research Fellow and theme leader in the Foresight and Policy Modeling Unit, based in Washington, DC. His research focuses on climate resilience, spatial data and analytics, agroecosystems, and agricultural science policy. Gridded crop production data of the world (SPAM) and the agricultural technology evaluation model (DREAM) are among his research contributions. 

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Where we work

IFPRI currently has more than 600 employees working in over 80 countries with a wide range of local, national, and international partners.

Relaxation on agricultural export restrictions in the second half of 2022 (Commod Africa) 

January 30, 2023


A Commod Africa article reports in the weeks following Russia’s invasion of Ukraine, export restrictions, and/or suspension measures on several agricultural products were put in place by some countries. These decisions helped propel the prices of certain products to new heights and increase market volatility. At the peak of the crisis near the end of May, twenty-three countries imposed export restrictions affecting nearly 17 percent of global food and nutrition exports (on a calorie basis), according to the International Food Policy Research. Institute (IFPRI). In the second half of the year, IFPRI observed an easing in the rise in food prices and a reduction in export restrictions. From July, the amount of trade affected by export restrictions fell to 7.3 percent and remained largely at this level for the balance of the year 2022.

Throughout 2022, 32 countries imposed 77 export restrictions in the form of export license requirements, export tax or duties, outright bans, or a combination of measures. 

Read the full article and examine an IFPRI graphic on crops and inflation. 

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