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• Demand: a schedule showing the quantities of a good or service consumers are willing and able to purchase at various prices during a time period and ceterus paribus Price Quantity demanded • Demand curve—a graphic representation of the schedule, (all graphs must always be labeled) prices on right axis, quantity on horizontal axis • The graph represents the Law of Demand: quantity demanded of a product is negatively related to its price as the curve slopes downward because • Income effect-when prices are lower, consumers purchase larger quantities • Substitute effect-as price goes up, consumers will find substitutes, thus demand goes down • Preferences- “how well you like one product • The Curve assumes constants and a change on the curve is a change in the quantity demanded, but changes in demand will shift the curve right or left • • • • • compared to another” Expectation-of prices rising in the future the curve shifts to right, if prices are lowered curve shifts to left Number of consumers in market-more consumers in the market causes curve to shift right, less consumers, left Tastes-same as preferences Income-a change in income will cause one curve to shift one direction, and another curve to shift in another Price of related goods-substitute goods: products used in place of other products; complimentary goods: products purchased along with other goods Opportunity Costs • (foreign beef market) outbreak of mad cow disease causes a ban on imported beef; (local beef market) same scenario • (Coke and Pepsi) Pepsi raises prices • (gas) OPEC increase oil production • (Ford) government forces auto makers to meet new emissions standards • (Burger King burgers) Burger King lowers the price of fries • (Nike shoes) begin advertising campaign aimed toward women • (Levi’s jeans) Levi’s raises prices 20% • (Orange juice) Hurricanes in Florida destroy orange crops • A schedule showing the quantity of goods and services producers are willing and able to supply Quantity Supplied Price • Supply curve—a graphic representation of the schedule, (all graphs must always be labeled) prices on right axis, quantity on horizontal axis • The graph represents the Law of Supply: quantity supplied of a product is positively related to its price as the curve slopes upward because it allows producers to recover their costs • Technology-influences the types of • • • • • machines we use, so a technological advance changes the curve because it uses fewer resources Sellers-number of producers in the market, more producers the greater supply so curve shifts to the right Taxes and subsidies-taxes are costs to businesses and reduce supply, subsidies are income and allow producers to increase supply Other goods made from resourcesResource Prices-because the curve assumes prices of resources remains unchanged, an increase in resource prices allow the curve to shift left or vice-versa Expectations of supplies in the future Crossing the two curves will create an Equilibrium price and Equilibrium Quantity Surplus: a situation in which quantity supplied is greater than quantity demanded Shortage: a situation in which quantity demanded is greater than quantity supplied