review.chicagobooth.edu | Chicago Booth's Luigi Zingales and George Mason University's Tyler Cowen discuss the market power wielded by digital platforms, and how to promote competition.

review.chicagobooth.edu |Change is necessary for virtually every organization, and yet also often painful for the people involved.

The disparity in wealth between the top and lower echelons of households in the US and other countries has garnered a great deal of research and commentary. But how easy is it to move from one echelon to another—and what could we do to facilitate upward movement? University of Chicago's Ariel...