Introduction to Microeconomics

this is the 1st lesson of A level economics " economic methodology and economic problem". This document include detailed summary notes on " basic economic concept , scarcity, resource allocation and economic systems , PPF curve, comparative advantage and trade, cost benefit analysis, Marginal analysis and consumer choice , and positive and normative data". This summary contain examples and all the basic knowledge we need for this topic .Also this is well organised and easy to read. ...