"If you take ordination off the table, in the U.S. our statistics are better than the Department of Labor when it comes to women in executive positions, " Walsh said.

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The league table is officially known as a 'meta ranking', bringing in statistics gathered from the London-based newspaper's five more specialized rankings compiled earlier in the year, for global MBAs, executive education courses, masters degrees in management and Executive MBA (EMBA) programs.

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These statistics demonstrate both the complexity of the supply chain from feed farm to table, and illustrate the importance of sustainability in the American food production industry.

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