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demand
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willingness and ability to pay
It refers to a schedule of quantities of a good that will be bought per unit of time at various prices, other things constant
It refers to a schedule of quantities of a good that will be bought per unit of time at various prices, other things constant
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law of demand
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Quantity demanded rises as price falls, other things held constant.
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As price increases, people will begin to what?
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Substitute other goods
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demand curve
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The graphic representation of the relationship between price and quantity demanded. It slopes down because price and quantity demanded are inversely related.
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quantity demanded
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A specific amount that will be demanded per unit of time at a specific price, other things constant. It tells us how much will be bought at a specific price, a point on the demand curve.
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movement along a demand curve
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the graphical representation of the effect of a change in price on the quantity demanded
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shift in demand
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the graphical representation of the effect of anything other than price on demand, shift factors
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Shift Factors of Demand
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1. Income
2. Price of other goods
3. Tastes
4. Expectation
5. Taxes on and subsided to consumers
2. Price of other goods
3. Tastes
4. Expectation
5. Taxes on and subsided to consumers
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How income affects demand
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If income goes up, then the demand for normal goods rises. If income goes down, then the demand for inferior goods rises.
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How prices of other goods affects demand
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Substitutes: The price of one good rises, then people by other goods
Compliments: If the price for one good declines, then the demand for its compliment increases.
Compliments: If the price for one good declines, then the demand for its compliment increases.
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market demand curve
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the horizontal sum of all individual demand curves
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supply
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the ability and willingness to supply a resource or good
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law of supply
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Quantity supplied rises as price rises, other things held constant
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supply curve
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the graphical representation of the relationship between price and quantity supplied
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supply
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a schedule of quantities a seller is willing to sell per unit of time at various prices, other things constant
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quantity supplied
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a specific amount that will be supplied at a specific price
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movement along a supply curve
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the graphical representation of the effect of a change in price on the quantity supplied
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shift in supply
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the effect of a change in a factor other than price on supply
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Shift Factors of Supply
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1. Price of inputs
2. Technology
3. Expectations
4. Taxes and Subsidies
2. Technology
3. Expectations
4. Taxes and Subsidies
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equilibrium
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point where supply and demand intersects
Quantity supplied equals quantity demanded, prices have no tendency to change
Quantity supplied equals quantity demanded, prices have no tendency to change
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equilibrium quantity
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the amount of bought and sold at the equilibrium
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equilibrium price
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the price toward which the invisible hand drives the market
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surplus
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quantity supplied is greater than quantity demanded
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shortage
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quantity demanded is greater than quantity supplied
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Why do the laws of supply and demand hold true?
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Individuals can substitute
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What happens when the demand curve shifts to the right?
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Equilibrium price rises and equilibrium quantity rises
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What happens when the demand curve shifts to the left?
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Equilibrium price falls, and equilibrium quantity falls
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What happens when the supply curve shifts to the right?
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Equilibrium price declines and equilibrium quantity rises
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What happens when the supply curve shifts to the left?
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Equilibrium price rises and equilibrium quantity falls
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exchange rates
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the price of one country's currency in terms of another's currency
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What determines exchange rates?
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It is the same as the determination of price. A currency is just another good. People demand currencies of other countries to buy those countries' goods and assets
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Why did the value of the euro rise in the 2000s?
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Because the U.S. economy entered a recession, and because U.S. interest rates fell, Europeans bought fewer U.S. financial rates fell. That meant they supplied fewer euros because they needed to buy fewer U.S. dollars. At the same time, Americans also decided to buy more european stocks and bonds because european interest rates were relatively higher, as did other countries.