Production function
the amount of output that can be produced by any given amount or combination of input(s); describes differing technologies capable of producing the same thing
Average product
total output divided by a particular input (usually y/x)
Marginal product
Preferences
A description of the benefit or cost we associate with each possible outcome
Indifference curve
Marginal rate of substitution (MRS)
Opportunity cost
When taking an action implies forgoing the next best alternative action, this is the net benefit of the foregone alternative.
Economic rent
enjoyment minus economic cost
Feasible frontier
the highest grade he can achieve given the amount of free time he takes
Marginal rate of transformation
the quantity of some good that must be sacrificed to acquire one additional unit of another; at any point, it is the slope of the feasible frontier
Constrained choice problem
Income effect
the effect that the additional income would have if there were no change in the opportunity cost (bc the budget constraints shift outwards)
Substitution effect
the effect of the change in the opportunity cost, given the new level of utility (bc the slope of the budget constraint, the MRT, rises)