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shifters of the supply curve
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Technology, input prices, related prices, expectations, sellers.
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normal goods
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Demand for them increases as income increases.
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inferior goods
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Demand for them decreases as income increases.
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substitutes
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As price of a good X increases, demand for product Y increases.
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complements
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As price of good X increases, demand for good Y decreases.
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change in demand/supply
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Shift of curve
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change in quantity demanded/supplied
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Movement along curve
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market size
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Number of consumers. As number of consumers increases, so does demand.
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expectations (demand)
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Presumptions made by consumers. If people expect a price to rise, demand increases. If they expect a price to fall, demand decreases.
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tastes and preferences
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As preferences for a product grow, so does demand.
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law of demand
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As price increases, quantity decreases.
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law of supply
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As price increases, quantity increases.
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input prices
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Something used to make a good or service. As input prices increase, supply decreases, and vice versa.
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technology
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New, more efficient technology increases supply.
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equilibrium
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When quantity supplied = quantity demanded.
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shortage
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Quantity demanded is greater than quantity supplied.
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surplus
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Quantity supplied is greater than quantity demanded
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price controls
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Legal restrictions on how high or low a market price can go. Price ceilings and floors.
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price ceilings
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A maximum price that sellers are allowed to charge. Only efficient if it's below equilibrium.
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price floors
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A minimum price buyers are allowed to pay for a good or service. Only efficient if it's above equilibrium.
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effects of price ceilings
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Creates a shortage.
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effects of price floors
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Creates a surplus
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deadweight loss
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The lost associated with transactions that don't occur.
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consumer surplus
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the amount a buyer is willing to pay for a good minus the amount the buyer actually pays for it
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producer surplus
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the amount a seller is paid for a good minus the seller's cost of providing it
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law of diminishing marginal utility
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rule stating that the additional satisfaction a consumer gets from purchasing one more unit of a product will lessen with each additional unit purchased
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supply
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the amount of goods producers are willing and able and sell
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demand
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the amount of goods consumers are willing and able to buy
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import quota
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a limit on the amount of a good that can be imported
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Tariff
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A tax on imported goods
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excise tax
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a tax on the production or sale of a good
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amount imported
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Difference between the quantity that consumers are willing and able to buy and the amount produced domestically
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CS gets smaller
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When a tariff is added on imports
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Total revenue
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Price x Quantity
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Total Tax Revenue
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Tax x Q
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Total Revenue the seller gets after tax
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Total Revenue - Total Tax Revenue
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Tax per unit
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vertical distance between supply curves