Never has economics possessed more powerful analytical tools. Yet it has rarely faced a world changing so rapidly. Artificial intelligence is reshaping technological competition while concentrating economic power in a handful of firms. Climate change has moved from an environmental concern to a defining economic constraint. Geopolitical rivalry increasingly shapes trade, investment, industrial policy, and technological development. Global supply chains, once celebrated as sym

Recent global developments have led many to draw parallels between our current era and the 1930s. The rise of nationalism, economic...