Ch 1 The Market Flashcards
Model
Simplified representation of reality
Exogenous variable
Determined by factors not discussed in the model
Endogenous variable
Determined by forces described in the model
Optimization principle
People try to choose the best patterns of consumption that they can afford
Equilibrium principle
Prices adjust until the amount that people demand of something is equal to the amount that is supplied
Demand curve
Relates quantity demanded to price
Supply curve
Relates quantity supplied to price
Equilibrium price
Price where quantity demanded equal quantity supplied
Comparative statics
Comparing two static equilibria without worrying about how the market moves from one equilibrium to another
Pareto improvement
Some people better off without making anyone worse off
Pareto efficient
Nobody can be made better off without making another worse off