When an economic boom ends, the downturn is generally sharp and short. When growth resumes, the boom is more gradual. Our explanation for this pattern rests on learning about productivity. When agents believe productivity is high, they work, invest, and produce more. More production generates...

When a boom ends, the downturn is generally sharp and short. When growth resumes, theboom is more gradual. Our explanation rests on learning about productivity. When agentsbelieve productivity is high, they work, invest, and produce more. More production generates higher precision information....