Start-ups and other entrepreneurial ventures make a significant contribution to the US economy, particularly in the tech sector, where they comprise some of the largest and most influential companies. Yet for every high-profile, high-growth company like Apple, Facebook, Microsoft, and Google,...

"Contents" -- "Prefatory Note" -- "Introduction / John Haltiwanger, Erik Hurst, Javier Miranda, and Antoinette Schoar" -- "I. Entrepreneurial Heterogeneity" -- "1. High- Growth Young Firms: Contribution to Job, Output, and Productivity Growth / John Haltiwanger, Ron S. Jarmin, Robert Kulick, and...