Do we have to choose between equality and prosperity? Many think that reducing economic inequality would require such heavy-handed interference with market forces that it would stifle economic growth.  Heather Boushey insists that rising inequality actually undermines growth in three ways. It obstructs the supply of talent, ideas, and capital as wealthy families monopolize the best educational, social, and economic opportunities. It also subverts private competition and public investment. Powerful corporations muscle competitors out of business, in the process costing…