"In many fields, policymakers seem to have an increasing preference for simple, large, non- redundant systems of analysis and governance. To address this question, we examine several arenas in which scholars have studied the costs and benefits of different levels of redundancy, including:...

This paper proposes an alternative approach to addressing the complex problems of climate change caused by greenhouse gas emissions. The author, who won the 2009 Nobel Prize in Economic Sciences, argues that single policies adopted only at a global scale are unlikely to generate sufficient trust...