Global food prices have remained close to record highs in June, in part due to Russia's invasion of Ukraine. As the world’s fourth largest exporter of grain, about 20 million tons is sitting in storage in Ukraine without any efficient way to get it to market because of a Russian blockade in the Black Sea, which is preventing shipping containers from transporting the grain.

We speak with Ukrainian-American Anna Nagurney, Chair in Integrative Studies at the Isenberg School of Management at The University of Massachusetts - Amherst and board member at the Kyiv School of Economics, about the latest on Russia’s blockade of Ukrainian food exports, and how it is affecting global food prices and supply.