In recent years the academic world has experienced a mushrooming of journals that falsely pretend to provide peer review. We study the quantity and quality of publications in dubious journals using information from the CVs of 46,000 researchers seeking promotion in Italian academia. We find that...

Reputation is critical to foster trust in online marketplaces, yet leaving feedback is a public good that can be under-provided unless buyers are rewarded for it. Signaling theory implies that only high quality sellers would reward buyers for truthful feedback. We explore this scope for...