 Those at the very top of the economic ladder have developed and used political muscle to dramatically cut their taxes, deregulate the financial industry, keep corporate governance lax and labor unions hamstrung.Instead of a rising tide lifting all boats, the authors write, "yachts are rising, but dinghies are largely staying put" in America, and "there is reason to suspect that the dinghies are staying put in part "because" the yachts are rising.