Government energy efficiency mandates--especially those relating to appliances--are clunky and ineffective, says Ted Gayer, Brookings Institution vice president of economic studies. The costs outweigh the benefits, he says. It would make more economic sense to tax energy use or companies that produce pollution. Learn more about Gayer's views here: http://www.brookings.edu/research/testimony/2015/04/30-energy-efficiency-legislation-gayer