Introduction

INTRODUCTION
Economics involves the choices people make when matching their limitless needs and wants with a scarcity of resources. The word "economics" is derived from the Greek words "oikos", which means house, and "nomos", which means manager. So the term originally referred to management of the household. Today, the term has been broadened to refer to firms and all of society.

Another way of looking at economics is to consider the field as a set of tools for analyzing people and groups and the choices that they make. Accountants are trained to render an account of financial activity for a company. Lawyers are trained into a certain mode of thinking so as to resolve issues in a legal framework. Similarly, economists are trained to use a set of tools and principles to analyze why individuals, firms, governments and other groups behave as they do.

Models
Economists often use models, which are representations of what the economist wishes to analyze. If, for example, an economist wishes to analyze the behavior of a labor union, the economist will not try to include every possible aspect and piece of data about labor unions in his or her model. Important factors will be focused on, such as wages, benefits, alternative jobs, etc. Hopefully the economist's model will include all of the important variables and will give little or no weight to less critical variables.

Most economic analyses include the phrase "everything else is remaining the same", so attention can be focused on the variables specified by the model. Of course, this assumption is rarely true in real life. If one were trying to analyze federal deficits and interest rates, for example, there would be plenty of change during the time period analyzed.

The CFA Level I Exam
The economics portion of the CFA Level I exam touches on a wide range of economic theory. The material covered would normally be taught in senior (or graduate level) microeconomic, macroeconomic, money and banking, and international trade courses. You will need to understand all of the material presented here in order to successfully answer all of the questions given. There will be a few questions that require the solution of equations, particularly with regards to foreign exchange.

A. BASICS
This section focuses on preliminary economic concepts you should know for your upcoming exam. Note that in the new CFA® Program material for 2007, Preliminary Learning Outcome Statements (PLOS) were removed. Your upcoming CFA Level 1 exam will not test directly on these basic concepts, but CFA Institute notes that you should have a basic understanding of these topics to ensure success on the more challenging topics that lie ahead.

    I. What is Microeconomics?
    Microeconomics is the branch of economics which looks at choices made by narrowly defined units, such as individual buyers/consumers, and firms that
    produce goods.



Next: Supply and Demand

Table of Contents
1) Introduction
2) Supply and Demand
3) Price Elasticity
4) Elasticity of Demand
5) Elasticity of Supply
6) Marginal Benefit and Marginal Cost
7) Market Efficiency
8) Price Ceilings and Floors
9) Tax Effects
10) Opportunity Costs
11) Achieving Economic & Technological Efficiency
12) Types of Markets & Concentration Measures
13) Modifying Output
14) Marginal Cost Curve and the Average Total Cost Curve
15) Perfectly Competitive Markets
16) Effects on Equilibrium in the Short and Long Run
17) Characteristics of Monopolies
18) Inefficiencies of Monopolies
19) Monopolistic Competition
20) Oligopolies
21) Conclusion

add investopedia foot
www.investopedia.com