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Determination of Price and Quantity Determinants of supply and demand Supply and Demand ECO 120: Global Macroeconomics ECO 120: Global Macroeconomics Supply and Demand
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Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Aug 29, 2020

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Page 1: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Supply and Demand

ECO 120: Global Macroeconomics

ECO 120: Global Macroeconomics Supply and Demand

Page 2: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Goals

Goals 1/ 17

Specific Goals

Learn what demand is and what influences demand.Learn what supply is and what influences supply.Learn how prices and quantities are determined by supply anddemand.Use these skills to make predictions about changes in price andquantity.

Learning Objectives

LO 2: Use the supply and demand model to predict price andquantity outcomes for markets for products and services.

ECO 120: Global Macroeconomics Supply and Demand

Page 3: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Goals

Goals 1/ 17

Specific Goals

Learn what demand is and what influences demand.Learn what supply is and what influences supply.Learn how prices and quantities are determined by supply anddemand.Use these skills to make predictions about changes in price andquantity.

Learning Objectives

LO 2: Use the supply and demand model to predict price andquantity outcomes for markets for products and services.

ECO 120: Global Macroeconomics Supply and Demand

Page 4: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Goals

Relevant Reading 2/ 17

Demand: Module 4

Supply and Equilibrium: Module 5

Changes in Equilibrium: Module 6

ECO 120: Global Macroeconomics Supply and Demand

Page 5: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 3/ 17

The quantity demanded of a good or service is the amountconsumers are willing and able to buy in a given time periodat a particular price.

Law of demand: All other things remaining equal, the higher(lower) the price of the good, the smaller (higher) is thequantity demanded.

Demand schedule/curve: a table or graph of differentquantities demanded for different prices.

According to the law of demand, the demand curve should besloping.

Change in quantity demanded: when there is a change inprice causing a movement from one point on the demandcurve to another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 6: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 3/ 17

The quantity demanded of a good or service is the amountconsumers are willing and able to buy in a given time periodat a particular price.

Law of demand: All other things remaining equal, the higher(lower) the price of the good, the smaller (higher) is thequantity demanded.

Demand schedule/curve: a table or graph of differentquantities demanded for different prices.

According to the law of demand, the demand curve should besloping.

Change in quantity demanded: when there is a change inprice causing a movement from one point on the demandcurve to another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 7: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 3/ 17

The quantity demanded of a good or service is the amountconsumers are willing and able to buy in a given time periodat a particular price.

Law of demand: All other things remaining equal, the higher(lower) the price of the good, the smaller (higher) is thequantity demanded.

Demand schedule/curve: a table or graph of differentquantities demanded for different prices.

According to the law of demand, the demand curve should besloping.

Change in quantity demanded: when there is a change inprice causing a movement from one point on the demandcurve to another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 8: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 3/ 17

The quantity demanded of a good or service is the amountconsumers are willing and able to buy in a given time periodat a particular price.

Law of demand: All other things remaining equal, the higher(lower) the price of the good, the smaller (higher) is thequantity demanded.

Demand schedule/curve: a table or graph of differentquantities demanded for different prices.

According to the law of demand, the demand curve should besloping.

Change in quantity demanded: when there is a change inprice causing a movement from one point on the demandcurve to another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 9: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 3/ 17

The quantity demanded of a good or service is the amountconsumers are willing and able to buy in a given time periodat a particular price.

Law of demand: All other things remaining equal, the higher(lower) the price of the good, the smaller (higher) is thequantity demanded.

Demand schedule/curve: a table or graph of differentquantities demanded for different prices.

According to the law of demand, the demand curve should besloping.

Change in quantity demanded: when there is a change inprice causing a movement from one point on the demandcurve to another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 10: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Demand 4/ 17

Demand Schedule

Point Price QD

A 0.5 9B 1.0 6C 1.5 4D 2.0 3E 2.5 2

Demand Curve

ECO 120: Global Macroeconomics Supply and Demand

Page 11: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Income and Substitution effects 5/ 17

The demand curve is downward sloping because of the incomeand substitution effect.

Substitution effect: when the price of a good rises, peoplemay buy substitute goods instead.

Income effect: When the price of a good rises, the realpurchasing power of your income decreases. When the realvalue of your income decreases, you buy less of everything.

Close to correct. More on the income effect later.

ECO 120: Global Macroeconomics Supply and Demand

Page 12: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Income and Substitution effects 5/ 17

The demand curve is downward sloping because of the incomeand substitution effect.

Substitution effect: when the price of a good rises, peoplemay buy substitute goods instead.

Income effect: When the price of a good rises, the realpurchasing power of your income decreases. When the realvalue of your income decreases, you buy less of everything.

Close to correct. More on the income effect later.

ECO 120: Global Macroeconomics Supply and Demand

Page 13: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Income and Substitution effects 5/ 17

The demand curve is downward sloping because of the incomeand substitution effect.

Substitution effect: when the price of a good rises, peoplemay buy substitute goods instead.

Income effect: When the price of a good rises, the realpurchasing power of your income decreases. When the realvalue of your income decreases, you buy less of everything.

Close to correct. More on the income effect later.

ECO 120: Global Macroeconomics Supply and Demand

Page 14: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Income and Substitution effects 5/ 17

The demand curve is downward sloping because of the incomeand substitution effect.

Substitution effect: when the price of a good rises, peoplemay buy substitute goods instead.

Income effect: When the price of a good rises, the realpurchasing power of your income decreases. When the realvalue of your income decreases, you buy less of everything.

Close to correct. More on the income effect later.

ECO 120: Global Macroeconomics Supply and Demand

Page 15: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 6/ 17

The quantity supplied of a good or service is the amountproducers are willing and able to produce and sell in a giventime period at a given price.

Law of supply: All other things remaining the same, thehigher (lower) is the price of a good, the higher (lower) is thequantity supplied.

Supply schedule or curve: a table or graph of differentquantities supplied for different prices.

According to the law of supply, the demand curve should besloping.

Change in quantity supplied: when there is a change inprice causing a movement from one point on the supply curveto another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 16: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 6/ 17

The quantity supplied of a good or service is the amountproducers are willing and able to produce and sell in a giventime period at a given price.

Law of supply: All other things remaining the same, thehigher (lower) is the price of a good, the higher (lower) is thequantity supplied.

Supply schedule or curve: a table or graph of differentquantities supplied for different prices.

According to the law of supply, the demand curve should besloping.

Change in quantity supplied: when there is a change inprice causing a movement from one point on the supply curveto another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 17: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 6/ 17

The quantity supplied of a good or service is the amountproducers are willing and able to produce and sell in a giventime period at a given price.

Law of supply: All other things remaining the same, thehigher (lower) is the price of a good, the higher (lower) is thequantity supplied.

Supply schedule or curve: a table or graph of differentquantities supplied for different prices.

According to the law of supply, the demand curve should besloping.

Change in quantity supplied: when there is a change inprice causing a movement from one point on the supply curveto another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 18: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 6/ 17

The quantity supplied of a good or service is the amountproducers are willing and able to produce and sell in a giventime period at a given price.

Law of supply: All other things remaining the same, thehigher (lower) is the price of a good, the higher (lower) is thequantity supplied.

Supply schedule or curve: a table or graph of differentquantities supplied for different prices.

According to the law of supply, the demand curve should besloping.

Change in quantity supplied: when there is a change inprice causing a movement from one point on the supply curveto another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 19: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 6/ 17

The quantity supplied of a good or service is the amountproducers are willing and able to produce and sell in a giventime period at a given price.

Law of supply: All other things remaining the same, thehigher (lower) is the price of a good, the higher (lower) is thequantity supplied.

Supply schedule or curve: a table or graph of differentquantities supplied for different prices.

According to the law of supply, the demand curve should besloping.

Change in quantity supplied: when there is a change inprice causing a movement from one point on the supply curveto another point.

ECO 120: Global Macroeconomics Supply and Demand

Page 20: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Supply 7/ 17

Supply Schedule

Point Price QD

A 0.5 0B 1.0 3C 1.5 4D 2.0 5E 2.5 6

Supply Curve

ECO 120: Global Macroeconomics Supply and Demand

Page 21: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Equilibrium 8/ 17

The equilibrium price is the price where the quantitysupplied is equal to the quantity demanded.

The equilibrium quantity is the corresponding quantity.

This is the price and quantity that will prevail in anunregulated market.

ECO 120: Global Macroeconomics Supply and Demand

Page 22: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Equilibrium 8/ 17

The equilibrium price is the price where the quantitysupplied is equal to the quantity demanded.

The equilibrium quantity is the corresponding quantity.

This is the price and quantity that will prevail in anunregulated market.

ECO 120: Global Macroeconomics Supply and Demand

Page 23: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Equilibrium 8/ 17

The equilibrium price is the price where the quantitysupplied is equal to the quantity demanded.

The equilibrium quantity is the corresponding quantity.

This is the price and quantity that will prevail in anunregulated market.

ECO 120: Global Macroeconomics Supply and Demand

Page 24: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Equilibrium 9/ 17

Surplus: awayfrom equilibrium,when QS > QD

Shortage: awayfrom equilibrium,when QD > QS .

ECO 120: Global Macroeconomics Supply and Demand

Page 25: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

DemandSupplyEquilibrium

Equilibrium 9/ 17

Surplus: awayfrom equilibrium,when QS > QD

Shortage: awayfrom equilibrium,when QD > QS .

ECO 120: Global Macroeconomics Supply and Demand

Page 26: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 27: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 28: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 29: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 30: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 31: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 32: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 33: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 34: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of demand 10/ 17

When something besides the price of the good effectsdemand, we say there is a change or shift in demand.

Something that increases (decreases) demand shifts thedemand curve to the right (left).

Determinants of demand:

Changes in prices of related goods.Changes in income.Changes in expected future income.Expectations of future price.Changes in population.Changes in tastes and preferences.

ECO 120: Global Macroeconomics Supply and Demand

Page 35: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Shifts in demand 11/ 17

ECO 120: Global Macroeconomics Supply and Demand

Page 36: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 37: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 38: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 39: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 40: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 41: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in price of related goods 12/ 17

Substitutes: a substitute good is a good that can beconsumed instead of another good.

Examples: beef and pork, wine and beer, hamburgers and hotdogs.

If the price of a substitute for beer increases, this willthe demand for beer.

Complements: a complement good is a good that is oftenconsumed together with another good.

Examples: Peanut butter and jelly, hamburgers and buns.

If the price of a complement for buns increases, this willthe demand for buns.

ECO 120: Global Macroeconomics Supply and Demand

Page 42: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in income 13/ 17

Normal good: a good whose demand increases whenconsumers’ incomes increase.

Inferior good: a good whose demand decreases whenconsumers’ incomes increase.

Can you think of examples of an inferior good?

ECO 120: Global Macroeconomics Supply and Demand

Page 43: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in income 13/ 17

Normal good: a good whose demand increases whenconsumers’ incomes increase.

Inferior good: a good whose demand decreases whenconsumers’ incomes increase.

Can you think of examples of an inferior good?

ECO 120: Global Macroeconomics Supply and Demand

Page 44: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Changes in income 13/ 17

Normal good: a good whose demand increases whenconsumers’ incomes increase.

Inferior good: a good whose demand decreases whenconsumers’ incomes increase.

Can you think of examples of an inferior good?

ECO 120: Global Macroeconomics Supply and Demand

Page 45: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Expectations 14/ 17

If people expect the price of the good to increase, this willtoday’s demand for the good.

If a good is a normal good and people expect to have higherincomes in the future, this will the demand for thegood.

If a good is an inferior good and people expect to have higherincomes in the future, this will the demand for thegood.

ECO 120: Global Macroeconomics Supply and Demand

Page 46: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Expectations 14/ 17

If people expect the price of the good to increase, this willtoday’s demand for the good.

If a good is a normal good and people expect to have higherincomes in the future, this will the demand for thegood.

If a good is an inferior good and people expect to have higherincomes in the future, this will the demand for thegood.

ECO 120: Global Macroeconomics Supply and Demand

Page 47: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Expectations 14/ 17

If people expect the price of the good to increase, this willtoday’s demand for the good.

If a good is a normal good and people expect to have higherincomes in the future, this will the demand for thegood.

If a good is an inferior good and people expect to have higherincomes in the future, this will the demand for thegood.

ECO 120: Global Macroeconomics Supply and Demand

Page 48: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 49: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 50: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 51: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 52: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 53: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 54: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 55: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 56: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 57: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Determinants of supply 15/ 17

When something besides the price of the good effects supply,we say there is a change or shift in supply.

Something that increases (decreases) demand shifts thesupply curve to the right (left).

Determinants of supply:Changes in the prices of factors of production.

When costs increase this supply.

Changes in the price of related goods.Expected future prices.

If the price is expected to be higher in the future, producerswill supply today.

Number of suppliers.Changes in technology.

ECO 120: Global Macroeconomics Supply and Demand

Page 58: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Substitutes and complementsNormal and inferior goodsExpectationsDeterminants of supply

Shifts in supply 16/ 17

ECO 120: Global Macroeconomics Supply and Demand

Page 59: Supply and DemandDetermination of Price and Quantity Determinants of supply and demand Demand Supply Equilibrium Demand 3/ 17 The quantity demanded of a good or service is the amount

Determination of Price and QuantityDeterminants of supply and demand

Next Time... 17/ 17

Supply and demand in class exerciese.

Apply our knowledge of supply and demand to look atbehavior of exchange rates, currencies, imports, and exports(Module 42).

ECO 120: Global Macroeconomics Supply and Demand