Macekura is a scholar of U.S. and international history, with a particular focus on political economy, international development, U.S. foreign relations, and environmentalism. His first book is “Of Limits and Growth: The Rise of Global ‘Sustainable Development’ in the Twentieth Century,” was published by Cambridge University Press. It analyzes how environmental NGOs struggled to implement environmental protection measures in the developing world in the 1950s and 1960s and then critiqued and reformed the development policies of the U.S. government, World Bank, and UN system in the 1970s and 1980s. His second book project is underway, a work that explores various critiques of economic growth since the 1960s by revealing how reformers have challenged and sought to rethink the ways in which the concept of “growth” has been defined, assessed, and measured. Macekura has had published articles and essays in edited volumes, periodicals, and scholarly journals on topics such as U.S. foreign policy, the origins of international development, and environmental policy and politics.