AS WITH PREVIOUS EDITIONS, THE PURPOSE OF THE SIXTH EDITION OF MICROECONOMIC THEORY: BASIC PRINCIPLES AND EXTENSIONS IS TO PROVIDE THE STUDENTS WITH A COMPREHENSIVE, YET ACCESSIBLE APPROACH TO MODERN MICROECONOMICS. THIS IS ACCOMPLISHED BY PROVIDING INTUITIVE EXPLANATIONS OF THE PRINCIPAL RESULTS AND BY STRESSING THE COMMON MATHEMATICAL STRUCTURES (SUCH AS MAXIMIZING BEHAVIOR AND EQUILIBRIUM PROPERTIES) OF MANY ECONOMIC PROBLEMS.