According to William Shepherd, in the U.S.economy

According to William Shepherd, in the U.S.economy

A) Herfindahl indexes have been increasing, indicating a decrease in competitiveness
B) Herfindahl indexes have been decreasing, indicating a decrease in competitiveness
C) the market share of the largest manufacturing firms has increased, indicating a decrease in competitiveness
D) competition has decreased because of exports, regulation, and insufficient antitrust activity
E) competition has increased because of more imports, deregulation, and antitrust activity