Why wealth gap has grown despite record-long economic growth

WASHINGTON (AP) — As it enters its 11th year, America’s economic expansion is now the longest on record — a streak that has shrunk unemployment, swelled household wealth, revived the housing market and helped fuel an explosive rise in the stock market.
Yet even after a full decade of uninterrupted economic growth, the richest Americans now hold a greater share of the nation’s wealth than they did before the Great Recession began in 2007. And income growth has been sluggis