Only a few weeks ago, the price of oil went over $147 a barrel, amid predictions of a continuing rise. Now it's dropped down almost to $90 a barrel. Get hear the how, the why and the relationship to the overall economy from Joseph Stanislaw, independent advisor to the energy and resources practices of Deloitte. He's author of The Commanding Heights: The Battle between Government and the Marketplace That Is Reshaping the Modern World.
