Economics Flashcards
Economics
Economics is the study of how individuals and societies choose to allocate scarce resources, why they choose to allocate them that way, and the consequences of those decisions.
Scarcity
is sometimes considered the basic problem of economics. Resources are scarce because we live in a world in which humans’ wants are infinite but the land, labor, and capital required to satisfy those wants are limited. This conflict between society’s unlimited wants and our limited resources means choices must be made when deciding how to allocate scarce resources.
Factors of production
also called the factors of production; these are the land (natural resources such as minerals and oil), labor (work contributed by humans), capital (tools, equipment, and facilities), and entrepreneurship (the capacity to organize, develop, and manage a business) that individuals and businesses use in the production of goods and services.
agent
some entity making a decision; this can be an individual, a household, a business, a city, or even the government of a country.
incentives
rewards or punishments associated with a possible action; agents make decisions based on incentives.
rational decision making
an agent is “rational” if they use all available information to choose an action that makes them as well off as possible; economic models assume that agents are rational.
positive analysis
analytical thinking about objective facts and cause-and-effect relationships that are testable, such as how much of a good will be sold when a price changes.
normative analysis
unlike positive analysis, normative analysis is subjective thinking about what we should value or a course of action that should be taken, such as the importance of environmental factors and the approach to managing them.
microeconomics
the study of the interactions of buyers and sellers in the markets for particular goods and services
macroeconomics
the study of aggregates and the overall commercial output and health of nations; includes the analysis of factors such as unemployment, inflation, economic growth and interest rates.
economic aggregates
measures such as the unemployment rate, rate of inflation, and national output that summarize all markets in an economy, rather than individual markets; economic aggregates are frequently used as measures of the economic performance of an economy.
capital
When people use the word capital in everyday conversation, many people are referring to money or “financial capital.” In economics, capital is defined as the already-produced goods (tools, machinery, equipment, and physical infrastructure) that are used in the production of other goods or services. A robot on a car factory floor is defined as capital in economics; money you borrow to start your own business is not. The financial value of assets that raise revenue (the production that works so you don’t have to, you do nothing but own).
Production possibility curve
The curve created when I plot out how many berries I can get if I spend all my time and get 5 rabbits (0), how many I can get if I spend the amount of time it takes to get 4 rabbits and use the rest for berries (100). Etc. (also called a production possibilities frontier) a graphical model that represents all of the different combinations of two goods that can be produced; the PPC captures scarcity of resources and opportunity costs.
Production possibility frontier
Everything on the production possibility curve and down is possible. The frontier is optimal. Beyond the frontier is impossible.
(implicit) Opportunity cost
The value of the best (non-monetary) option lost when making a decision. The amount of berries I give up by trying to get one more rabbit. the value of the next best alternative to any decision you make; for example, if Abby can spend her time either watching videos or studying, the opportunity cost of an hour watching videos is the hour of studying she gives up to do that.
Increasing opportunity cost
If I don’t kill any rabbits, I can pick 300 berries per day. If I kill one rabbit, my opportunity cost is only 20 berries because that first rabbit is slow and close. If I want a second rabbit though, I will have to give up an additional 40 berries. My opportunity costs are increasing because the rabbits lake longer and longer to get. The graph bows out from the origin.
Decreasing opportunity cost.
The curve is concave to the origin. I am getting better and better at catching rabbits, so I give up less and less berries for each one.
Constant opportunity cost.
Every additional rabbit I catch, I give up the same amount of berries. Straight line on a graph.
Efficient
When the production level is right on the production possibility frontier. the full employment of resources in production; efficient combinations of output will always be on the PPC.
Growth
When you attain a point that is impossible on the PPC as it stands originally through obtaining more land, capital, labor, better technology, better ways of combining all of the above.
Inefficiency
the underemployment of any of the four economic resources (land, labor, capital, and entrepreneurial ability); inefficient combinations of production are represented using a PPC as points on the interior of the PPC.
Contraction
a decrease in output that occurs due to a lack of resources that used to be available, not just an inefficient use of them, but a reduction in everything that made the PPC possible. In a graphical model of the PPC, a contraction is represented by moving to a point that is further away from, and on the interior of, the PPC.
Productivity
(also called technology) the ability to combine economic resources; an increase in productivity causes economic growth even if economic resources have not changed, which would be represented by a shift out of the PPC.
Comparative advantage
When your opportunity cost for producing one plate is only 1/3 of a cup compared to your competitor who’s opportunity cost for producing one plate is 3 cups, you have a comparative advantage in plate production. It doesn’t mean you actually produce more plates (absolute advantage), it is just that you have the capacity to give up less cups than your competitor when you do produce plates.