Theme 2.1.1 - The Interaction Of Demand And Supply Flashcards
Demand
Demand is the quantity of a good that consumers are willing and able to purchase at any price level, ceteris paribus
Law of demand
The law of demand states that when the price of a good rises, its quantity demanded will fall and vice versa, ceteris paribus
Law of diminishing marginal utility
The law of diminishing marginal utility states that beyond a certain point of consumption, as more and more units of the good or service are consumed, the additional utility a consumer derives from consuming successive units decreases
Normal good
A normal good is a good whose demand rises as people’s incomes rise, ceteris paribus
Necessity good
A necessity good is a good whose demand increases less than proportionately for a given increase in people’s incomes, ceteris paribus
Luxury good
A luxury good is a good whose demand increases more than proportionately for a given increase in people’s incomes, ceteris paribus
Inferior good
An inferior good is a good whose demand falls as people’s incomes rise, ceteris paribus
Substitutes
Substitutes are goods which are considered to be alternatives to each other
Complements
Complements are goods that when consumed together, gives rise to a higher combined utility than if the goods were consumed individually
Derived demand
Derived demand is the demand for goods which are not demanded for its own sake but used to facilitate the production of another
Supply
Supply is the quantity of a good that producers are willing and able to sell at every price level, ceteris paribus
Law of supply
The law of supply states that when the price of a good rises, its quantity supplied will rise and vice versa, ceteris paribus
Joint supply
Goods are in joint supply when the production of one good leads to the production of another good
Competitive supply
Goods in competitive supply compete fo the use of the same inputs
Price mechanism
The price mechanism describes the process by which consumers and producers interact to determine the allocation of scarce resources between competing uses