The study of how people, firms and societies choose to allocate their scarce (i.e. limited) resources to satisfy some of their unlimited wants
Microeconomics
The study of the choices that individuals and business make, the way these choices interact and how the government can exert influence on them
Macroeconomics
The study of the performance of the national economy and the global economy
Scarcity
The condition in which our wants (for goods) are greater than the limited resources available to satisfy those wants
Needs
Things that we must have to survive
Wants
Things that we would like to have but which are not necessary for our immediate physical survival
Choice
People have to make choices because of scarcity. As our unlimited wants are greater than our limited resources, some wants must go unsatisfied
Opportunity cost
The next best alternative foregone when an economic decision is made
Factors of production (Resources)
Land
Labour
Capital
Entrepreneurship
Land
Natural resources such as minerals, forests and water
Labour
The work time and work effort that people devote to producing goods and services
Capital
Includes physical capital (man-made resources) and human capital (knowledge and skills)
Entrepreneurship
The human resource that organizes the resources of land, labour and capital to produce goods, seek new business opportunities and develop new ways of doing things
Production Possibility Frontier (PPF)
Shows the maximum combinations of goods and services that can be produced by an economy in a given period, if all resources in the economy are being used fully and efficiently and the state of technology is fixed
PPF
Illustrates scarcity, choice, and opportunity cost
Increasing opportunity cost
As more of one good is produced, larger and larger quantities of the other good must be sacrificed
Constant opportunity cost
As more of one good is produced, the same quantities of the other good must be sacrificed
Shift of the PPF
1. Increase in the amount of resources
2. Improvement in the level of technology
Economic growth is the expansion of the economy's production possibilities