Tabla de Contenidos: “…L'Enfant terrible, 1883-1926: Innovation and economics -- Prologue: Who he was and what he did -- Leaving home -- Shaping his character -- Learning economics -- Moving out -- Career takeoff -- War and politics -- Gran Rifiuto -- Annie -- Heartbreak -- The adult, 1926-1939: Capitalism and society -- Prologue: What he had learned -- New intellectual directions -- Policy and entrepreneurship -- The Bonn-Harvard shuttle -- Harvard -- Suffering and solace -- The Sage, 1939-1950: Innovation, capitalism, and history -- Prologue: How and why he embraced history -- Business cycles, business history -- Letters from Europe -- To leave Harvard? …”