1. Analyzing economic problems Flashcards
Microeconomics
the economic behavior of INDIVIDUAL ECONOMIC decision makers, such as a consumer, a worker, a firm, or a manager.
Macroeconomics
analyzes how an ENTIRE NATIONLA ECONOMY performs
examine AGGREGATE levels of income and employment, the levels of interest rates and prices, the rate of inflation,
and the nature of business cycles in a national economy
economics is the science of constrained choice, why
we are constrained in the choices we can make about the goods and services we produce in the scarcity of resources
Questions that microeconomic analysis must answer
- WHAT GOODS AND SERVICES will be produced, and in what QUANTITIES?
- WHO will PRODUCE the goods and services, and OW?
- WHO will RECEIVE the goods and services?
exogenous variable
one whose value is taken as given in a model
OR determined by some process outside the model being examined
endogenous variable
a variable whose value is determined within the model being studied
microeconomics uses the same three analytical tools
- Constrained optimization
- Equilibrium analysis
- Comparative statics
constrained optimization
An analytical tool for making the best (optimal) choice, taking into account any possible limitations or restrictions on the choice.
constrained optimization problems as having two parts
an objective function and a set of constraints
objective function
The relationship that a decision maker seeks to maximize or minimize.
constraints
The restrictions or limits imposed on a decision maker in a constrained optimization problem
Marginal cost measures
the incremental impact of the last unit of the independent variable (output) on the dependent variable (total cost)
equilibrium
A state or condition that will continue indefinitely as long as factors exogenous to the system remain unchanged
equilibrium price
At that price the market clears (the quantity supplied and the quantity demanded are equal)
comparative statics
Analysis used to examine HOW A CHANGE in some
EXOGENOUS variable will AFFECT the LEVEL of some
ENDOGENOUS variable in an economic system