PRINCIPLES OF ECONOMICS: DISTORTING AND UNDISTORTING COMPETITIVE MARKETS: EXTERNALITIES: PRICES VS. QUANTITIES

PRINCIPLES OF ECONOMICS: DISTORTING AND UNDISTORTING COMPETITIVE MARKETS: EXTERNALITIES: PRICES VS. QUANTITIES

via:http://delong.typepad.com/sdj/2014/02/principles-of-economics-distorting-and-undistorting-competitive-markets-externalities-prices-vs-quantities.html