MICROECONOMICS: PRINCIPLES AND POLICY, Twelfth Edition, takes a policy-based approach to the teaching of introductory microeconomics. Written by two of the most respected economists in the world, this text is also one of the most current texts on the market that includes data through the spring of 2011. The text includes significant updates based on the current economic crisis, providing the right level of rigor and detail. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.