Professor Thomas Philippon and PhD student Germán Gutiérrez's joint research examining the growth and contributions of super star firms is cited
— February 26, 2019
Excerpt from LiveMint -- "A new paper by German Gutierrez and Thomas Philippon of the Stern School of Business at New York University takes a look at superstar firms in the US economy over the past six decades. Their careful empirical work ends with a counter-intuitive conclusion. Superstar firms have not become larger, have not become more productive and their contribution to productivity growth has fallen by more than a third."