One problem that encouraged deregulation was the way in which the regulated industries often controlled the government regulatory agencies, using them to serve the industries' interests.
The transportation industry is one of the most famous industries to feel the effects of deregulation. In 1887, Congress established the Interstate Commerce Commission (ICC), which regulated the railroad industry.
Like most economic policy, deregulation is controversial. Most economists agree that deregulation lowers an industry's barriers to entry and generally increases efficiency, competition, entrepreneurship, and innovation.