4.2.1 The economic problem and economic methodology, 4.2.2 How the macroeconomy works : the circular flow of income, AD/AS analysis, and related concepts, 4.2.3.1 Economic performance...
4.1.1- Economic Methodology and the economic problem, 4.1.3- Price determination in a competitive market, 4.1.8- Market Mechanism, Market Failure and Government Intervention in Markets