2017 reports included "The Struggle for Ukraine", an exploration of how, four years after its Euromaidan revolution, of Ukraine's fight for survival as an independent and viable state; and "Chokepoints and Vulnerabilities in Global Food Trade" advocates for policymakers to take immediate action to mitigate the risk of severe disruption at certain ports, maritime straits, and inland transport routes, which could have devastating knock-on effects for global food security; "Collective Action on Corruption in Nigeria: A Social Norms Approach to Connecting Society and Institutions" examines how anti-corruption efforts could be made significantly more effective through new ways of understanding why people engage in the practice; and "America’s International Role Under Donald Trump" explores the impact of President Donald Trump’s personality and style—brash, unpredictable, contradictory and thin-skinned—on his engagement in foreign affairs.