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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.

Forbidden to export: the monster that the war in Ukraine awoke (Mas)

August 31, 2022


Más (Colombia) published an article stating that the world has had a difficult succession of crises in recent years. The response of some countries, in the face of the pandemic and especially the war in Ukraine, has been to prohibit or limit their food exports, to privilege their compatriots. Globalization, which seeks the free world movement of goods and capital, but not of people, is having a powerful contradiction in the Covid-19 pandemic, and more recently in the war in Ukraine. As a result of the crises generated by these events, several countries have questioned the advisability of keeping their foreign trade policy unchanged, and some have adopted measures tending to limit it. Senior research fellow David Laborde, has been studying bans and restrictions on food exports around the world, in the framework of the crisis generated by the war in Ukraine. IFPRI finds that 25 countries have banned the export of one or more products, a decision that is still active in 20 of them. In addition, 9 countries have imposed export licenses, in 6 of which they are still active, and 3 more countries have adopted export taxes, in 2 of which they are still active. (See IFPRI tool, Food & Fertilizer Export Restrictions Tracker). 

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