6 Describing Supply and Demand:

We are bent and tortured by invisible hands.

The supply and demand model can be applied to realworld events.

There is a price ceiling and a price floor in the market.

You can view the economy through supply and demand.

The supply/demand lens is used to consider real-world events.

You can apply supply/demand analysis to real-world events.

There are three events.
Try to explain what happened using supply and demand curves.
Figure 5-1 has some diagrams to help you in the process.
In each, be careful to explain which curve, or curves, shifted and how that affected equilibrium price and quantity.

Half a million acres of land in California are not being used.

Sand is a key ingredient in the process of fracking for oil and natural gas in the United States.

There are three shifts of supply and demand in this exhibit.

Match them with the events listed in the text.

A growing middle class in China and India has increased the demand for food products such as soy and palm.

To meet the increasing demand for corn and soy, U.S. farmers have decided to grow more corn and less soy.

Let's see if your analysis matches mine after you've matched them.

The weather is a factor of supply.

The invisible hand of the market pushes the price up until the quantity demanded is equal to the price.

The process of fracking involves the use of sand.

Oil and gas producers in the U.S. increased their demand for sand.
The sellers ran out of sand and raised their price.

Let's review the examples that we've been through.

The curves will shift if demand and supply are not affected by the price of the good.

When both curves are shifting, you can get a change in price but little change in quantity, or a change in quantity but little change in price.

The effects of supply or demand curve shifts.

For supply, do the same thing.

The new keep things straight is where the equilibrium price and quantity are.

Draw the initial demand and supply curves and compare them to the initial equilibrium price and quantity.

The quantity and price are the new equilibrium price.

If only price has changed, no curves will shift and a graphs below.

There has been demand and supply for a hormone.

You have to decide what shifts produced the results.

I began the chapter with a variation of this exercise.

It goes over the production by 20 percent.
On the left-hand side of Table 5-1, I list graphically what effect this discovery would have on the price and quantity of combinations of movements of observed prices and quantities.
Milk is sold in a market.

Demand goes out.

Demand goes out.

There is a shift in supply.

Demand goes out.

There is a shift in supply.

The table shows the effects of supply and demand on equilibrium price and quantity.

The relative size of the shifts affects the Q down on either price or quantity.

If both demand and supply shift, let me give you the answers I came up with.

The price and quantity decline when the demand curve is downward-sloping.

Number 2 is on the left.
The price and quantity would go up.
Higher prices and lower quantity are caused by supply shifting to the left.
The match must be number 3 because it's unclear what happens to quantity.
This is the same as number 6.

We move out along the new demand curve.

The quantity goes up even more when the price goes down.
This is the same as number 5.

The diagrammatic of the com binations is presented as a summary.

People don't like the market-determined price.

People would have to accept the invisible hand as the sole factor that determined prices.
The price is determined by social and political forces.
When prices fall, sellers look to government for ways to hold prices up, while buyers look to government for ways to hold prices up.
Let's start with an example of a price being held down.

Many different models are used by economists.

When I discuss a real-world market as fitting a model, I use a pedagogical license.
The conclusions that come out of a model are given by the assumptions.
It is necessary to consider which assumptions of the model fit the situation one is describing.

When World War II ended, the price ceiling on housing rent in Paris created a short age of housing.

If rents were allowed to rise to $17 per month, the shortage would have been eliminated.

The limit is below the equilibrium price.

quantity demanded will exceed quantity supplied and there will be excess demand if the price is below the Rent Control equilibrium price.
In the real world, excess demand shows up.

Rent controls exist in a number of American cities as well as other cities around the world.

The first half of the 20th century saw the introduction of many of the laws governing rent.
For example, consider Paris.
Rent was frozen by the Paris government in World War II to make up for the financial burden of wage earner families who were sent to fight.
When the soldiers returned after the war, the rent control was still in place, and it was felt that it was an unfair burden on veterans.

The figure shows a situation.

There was an enormous shortage of apartments because of the below-market rent.
Since they got low-cost apartments, the shortage didn't bother those who were renting.
It created a lot of hardship for people who didn't have apartments.
Many families moved in with friends.

Others lived on the streets because they couldn't find housing.

The rent controls caused problems for people who did not have apartments.

Maintenance is cut back by owners of buildings.

20 percent of the private bathrooms had no running water.

Existing buildings weren't kept in repair because rental properties weren't profitable.
It was even harder for people who didn't have apartments.

Alternative methods of rationing were developed because the market price was not allowed to ration apartments.

They moved their furniture before anyone else.

Rent controls were lifted when the situation got so bad.

The system of rent controls is more than just historical.

Some phenomena have existed in New York City in the past.

A couple paid $450 a month for a two-bedroom Park Avenue apartment with a solarium and two terraces, while another individual paid $3,500 a month for a studio apartment shared with two roommates.

The apartment vacancies in New York City were 1.2 percent.

Anything under 5 percent is considered a housing emergency.

Key money is payments made by would-be tenants to current tenants or landlords to get apartments.

To demonstrate the situation that likely caused them.

You can check my answers with my answers.

Take the first item.

The couple lived in a rent-controlled apartment while the individual with roommates didn't.

The housing emergency was caused by rent control.

Excess demand and little vacancies were caused by below-market rent.
Nonprice rationing caused Mia Farrow to rent a rent-controlled apartment.

Other methods of rationing came about instead of being rationed by price.

In New York City, strict no longer rationed by price.

Nonprice rationing is one of the methods of rationing existing goods.

Many new residents discovered that illegal payments to landlords were the only way to get a rent-controlled apartment.

A key money is a black market payment.
Individuals were willing to pay more than the controlled price because of the limited supply of apartments.
Landlords used other methods of rationing the limited supply of apartments--instituting first-come, first-served policies, and selecting tenants based on gender, race, or other personal characteristics, even though such discrimination was il egal.
In some cases in New York City, the rent was so low that developers were able to buy the building from the landlord, tear it down, and replace it with a new apartment building.

No community would institute rent controls if they only had bad effects.

To cope with sudden increases in demand for housing that would otherwise cause rents to explode and force many poor people out of their apartments, they are implemented with good intentions.
The number of people looking to rent and unable to find apartments increases as buildings begin to degrade.

The result is excess supply.

The minimum wage is an example of a price floor.

It has been raised many times.

The federal minimum wage was $7 per hour.
Twenty-nine states had minimum wages that were higher than the federal minimum.
Almost all of the workers who receive the minimum wage are unskilled and/or part-time.
Most full-time adult workers are paid above the minimum wage.

People are looking for work but can't find it.

Two workers are able to find work.

The minimum wage hurts those who can't find work at the minimum wage but who are willing to work, and would have been hired at the market-determined wage.
The minimum wage hurts firms that have to pay more to their workers, increasing the cost of production, and consumers that have to pay more for their products.

Minimum wage laws are not bad and should be supported.

The decision to impose such laws should be based on a careful analysis of their costs and benefits.

The living-wage movement began because the federal minimum wage is not binding for most workers.

A wage is needed to support a family above the poverty line.

Hundreds of cities have established living-wage laws at varying levels.

The analysis of living-wage laws is the same as the analysis of minimum wages.

Let's look at an example of a tax on goods.

We can see the effect that excise Taxing Marijuana taxes and tariffs will have on prices and quantities by considering the impact of taxes in the supply/demand model.

Let's take a look at the example of the United States curveing up by the amount of tax.

600 boats were sold at the price of $60,000 before the luxury tax.

The government taxes suppliers for every boat they sell.

Suppliers must be compensated for the tax if they want to sell 600 boats.

Consumers are not willing to pay $70,000 for 600 boats.

They are willing to buy only a few boats.
The quantity demanded was $70,000.
Your study partner, Umar, has quantity supplied equals quantity demanded at $65,000, which is the new equilibrium price.

The new equilibrium price is $65,000.

The higher the price is, the higher the equilibrium price will be.

The entire supply curve is shifted by the amount of the tax.

The demand curve to the left is caused by the quantity of boats.

The quantity of goods is reduced by excise taxes.
The revenue generated from the tax was less than expected and boat manufacturers were up in arms.
The revenue collected was only $10,000 x 510.

The equilibrium price and quantity are the same as an excise tax.

Only foreign producers pay the tax when they send goods into the United States.

The United States imposed a 30 percent tariffs on imported steel in the early 2000s.

The tariffs were instituted because the U.S. steelmakers were competing with cheaper foreign steel.
The increased price of imported steel made U.S. steel more competitive to domestic buyers.
The price of imported steel went up by 15 percent and the quantity went down.
The foreign producer is not hurt by tariffs.
Domestic consumers pay more for imported products because of tariffs.
In the case of steel, higher production costs were faced by manufacturing companies.
The cost of a variety of goods increased in the U.S. as a result of the increase in the cost of steel.

The quantity licenses limit entry into a market.

We will look at the effect licenses have on the price and quantity of the activity being licensed.

Licenses to drive a taxi are an example.

The license is attached to the hood of a taxi in New York City.
Taxi medallions were established to increase the wages of taxi drivers.
Taxi drivers were paid from $26 a week in 1929 to $15 a week in 1933.
The number of taxi drivers fell as wages fell.
New York City granted permanent rights to drive taxis to 12,000 drivers who met certain requirements.

The desired effect was achieved by the restriction.

Taxi drivers' wages increased.

The taxi business has been in a state of change because of the low traditional taxi prices.

Las Vegas, for example, has passed match individuals who need rides with private drivers who will laws forbidding ride sharing companies from operating there.
These fights will be available on demand.

One pricing innovation that has been implemented is on smartphone apps.

Surge pricing means that you can go from one location to another.
When it is raining or when there is an increase in the number of taxi days such as New Year's Eve, it is necessary to allow times when taxis are in high demand.
Allowing more taxi raises its rates, sometimes seven times, adds more competition, holding as high as its regular rates.
Only those who are able and willing to pay will get the lowest prices for taxi services.

It's not surprising that taxi companies and drivers don't like new entrants, because economists have urged them for many years.

Existing taxi services are against the new quantity demanded.

They want a taxi and are willing to pay.

This has a significant cost advantage that can be used to practice peak and off-peak pricing.

The secondary effect was the issuance of taxi medallions.

The market in medallions developed because New York City granted the right to sell their medallions.
Those who were granted a medallions by the city found that they had a valuable asset.
A person wanting to drive a taxi, and earn high wages, had to buy a medallions from an existing driver.
New taxi drivers would earn a higher wage once they had a license, but their wage would be much lower after they take into account the cost of the license.

The medallions became more valuable as the demand for taxis increased.

Increased demand for taxis led to higher and higher prices.

As the New York City population grew, the demand for taxi medallions increased.

The price of a taxi medallions continued to go up.
The rise continued until the entry of the two ride-sharing companies, and increased the competition.
The price of medallions was lowered.
The analysis is more complicated in real life, which is why taxi drivers are pushing for limitations on both.

Let's consider third-party-payer markets as a final example.

Many individuals have insurance in the health care market.
They usually pay a co-payment for health care services.
Third-party payers are Medicare and Medicaid.

There is a small co-payment when there is a third party-payer market.

When the individual demander pays for the good, equilibrium quantity is where quantity demanded equals quantity supplied, in this case at an equilibrium price of $25 and an equilibrium quantity of 10.

The person who chooses how much to buy doesn't have to pay the whole cost.

The quantity demanded is greater because the co-payment faced by the consumer is lower.
The consumer is demanding 18 with a co-payment of $5.
The seller requires a higher price for each unit because of the upward-sloping supply curve.
In third-party-payer markets, equilibrium is for each unit, the consumer pays $5 of that price for a total out- quantity and total spending is much of-pocket cost of $90.
Third-party payers pay the rest for higher.

There is a total of $810 spent.

If the consumer had to pay the entire price, total spending would be only $250.
With a third-party-payer system, total spending, represented by the large shaded rectangle, is much higher than total spending if the consumer pays.

Much of the health care system in the United States is described in the third-party-payer system.

A fixed co-payment is usually made for an office visit by a person with health insurance.
The insured patient doesn't have much incentive to limit the procedures offered by the doctor.
The doctor charges the insurance company.
The rise in health care costs can be attributed to the third-party-payer system.

If the cost of textbooks were where a 70 year old man spent weeks in a hospital recovering from surgery to address included in tuition, what would likely abdominal bleeding?

The per son who chooses the product doesn't pay the whole cost in a third-party-payer system.

Consumers demand 18 units with a co payment of $5.

There is a shaded region.

Thinking Like an Economist patient's condition wasn't improving because ill-fitting dentures didn't allow him to eat properly The dentist was ordered to fix the dentures by the doctor, but the patient refused.

The procedure was not covered by Medicare.

Third-party-payer systems are not limited to health care.

The quantity demanded will be higher if a third-party-payer system exists.

The person using the service doesn't have an incentive to hold down costs so market forces won't hold them down as much.
That doesn't mean there aren't pressures.
Parents, employers, and government will respond to this by trying to limit the amount of good people they pay for.
Government will place limitations on what procedures Medicare and Medicaid patients can use and parents will put pressure on their kids to get through school quickly.
The goods will be rationed.
It's not surprising that such effects are an example of supply and demand in action.

They decrease demand and raise almost all events in terms of supply.

A price ceiling is a government-imposed limit on how much can be charged.

equilibrium quantity is reduced by price ceilings.

A price floor is a government-imposed limit on how one pays the cost in a third-party-payer market.

A low price can be charged.
When a third price creates surpluses, total spending is greater.

A $4 per-unit tax on road will pick up a signal from your car and automatically suppliers on equilibrium price and quantity.

This is a trend in 13 The supply and demand curves are associated with the children's tastes.

The diet that limits calories was said to be very effective.

The demand for oil in China continues to rise.

The quantity of oil bought was 0.50 100 175.

Show your answer graphically.

The effect of legalized a.

What is the equilibrium price and quantity?

Many people are willing to donate their organs.

People are willing to give more.

There are quantity restrictions on imported goods.

The effect of a quota on the price is shown.

Grain prices went up in the Midwest due to a lack of rain.

The price of ground beef went from $3 a pound to $5 a pound, and the number of fishing licenses went up as a result.

The ground effect of a limit of 100 fishing licenses at a cost of beef market is shown in the accompanying graph.

If this were a third-party-payer market.

Questions from Alternative Perspectives 1.

The market is the best policy to follow according to some economists.
That means that if the labor market is bad.

Women are paid less than men.

New York City was enacted after World War II.

Cultural and biological evolution occur very slowly.

What policies would you recommend to exploit market positions if you disagree with most religions?

The text makes it clear that there is inequity and the lack of affordable housing in the U.S.

The television networks were given in the late 1990s.

After the airway was given to the network, they broadcasted high-definition television rather than auctioning it off.

The U.S. government supports the price of sugar.

The United States consumes more than the lottery system can sell for between $110 and $130 imports.
Usually applications exceed available tickets by more than they produce.

The game is a year away.

If you use supply/demand analysis, you can show how import can sell tickets for between $200 and $2,000 depending on restrictions.

At least 1.25 million tons of sugar can be imported for $2,000.

How does this affect the U.S.

It's hard to find apartments in New York City.

Rent control is one of the main reasons that "scalping" is against the law in some states.

Rent controls could be graphically shown.

To demonstrate apartments hard to find, use supply/demand analysis and words.

One can get an apartment if one side does something to the price of tickets.

The Board of Cosmetology was created by Congress.

Angora goat wool was designated Washington, D.C. to license beauticians.
People had to attend a school to get a strategic commodity.
This law was used by the board to close down a hair-braiding worth of mohair sold to manufacturers and ranchers used to get $3.60 for every dollar they spent.

The effect of eliminating this school is graphically shown.

What could be the reason for this board?

The effect of the law can be seen graphically.

Therapy to slow the progression of AIDS 10 was included in the Oregon health care plan.

The quantity supplied to the U.S. agricultural markets was not always covered.

The Oregon plan is a fixed fee per year per car.

The US imposes substantial taxes on cigarettes.

Airlines and hotels don't sell loose tobacco.

Doctors in Japan used to sell the equivalent of discounts.

Give two reasons why the United States is such a good place to do business.

The firm puts about $800 in an account for each doctor it encourages to use medical care in the US.

Whole Foods Market changed its name in the early 2000s.

Answers to Margin Questions 1.

When supply goes up, it goes to the right.

Demand slopes downward, which causes the price to fall.

There is a hormone that will increase cows' milk quantity.

The quantity will be decreased and the price will be decreased by the suppliers.

The final S' price was $5, not $6, because the supplier received falls from $4 to $3.

The market-determined equilibrium price and quantity will not be affected by the price ceiling being above it.

The ceiling will result in a lower price.

Paying for a textbook is a lot of work.

The same results can be found in the appendix as in the equations.

I do geometry in this appendix.
Straight-line supply and demand curves are used to calculate equilibrium.

The law of demand states that quantity demands declines as price increases.

A demand curve has a negative slope because price and quantity are related.

$5 is 5 units.

The answer can be seen graphically.

The equilibrium price and quantity can be determined using equations.

Three steps using two equations.
If you want to find the equili demand and supply intersect, you have to find the quantity and price of $5.

rearrange terms to solve for the price.

equilibrium price is $5

The equations for equilibrium price and quantity need to be solved.

The solution is shown by decreasing quantity demanded.

$6 is the quantity supplied.

The shift factor of supply would shift the rose to 7 units, just as you would expect with a rightward entire supply curve out to the right.

At every shift in the demand curve, let's say that.

The slope is negative for the equations first, so let's solve the fied first.

The units must always be stated.

A price ceiling of $4 is imposed.

You're doing well if you said shortage.
This appendix has 300 tinuing with it.
We have to find out how much will be supplied to make up for the 300 shortage.

There will be a shortage of an equation that shows the demand curve.

Let's look at a price floor of $6.
The quantity of movie rentals Alice demands is 10, and for every $6 into the two equations gives a quantity supplied increase in price of $1, the quantity she demands falls by 2.

For every $1 increase in price, the quantity Ann supplies rises Taxes and Subsidies by 2.

The quantities should be equal to one another.

Setting Ann is willing to give five movies per week at $2.50 per movie and Alice is willing to give five movies per week at $2.50 per movie.

The mathematical solution we came up with is the same as Figure 8.

The price the supplier gets net of tax is $42/3.

There is a price ceiling and price floor.

The tax was put on the demander start with the supply and demand curves.

The supplier gets this price.

The demanders' pay is $52/3.
The equilibrium quantity will be divided by the number of units.

Since consumers are willing to pay more, these are the results we got with the previ pliers.

The price that suppliers would be willing to accept for a quantity of 41/3 is $42/3.
The effect on can be found by substituting the amount of the quota in equilibrium price and quantity, no matter who pays the tax.

The result is very similar to the tax because of a quota.

The supply equation becomes 41/3 units if the quota is less than the market equilibrium demanders.

Thelicit tax revenue market will arrive at for this quantity is determined by the that results from the higher price.

You can create demand and supply tables.

These equations represent demand and supply.

Show your work.

Suppose the supply equation is changed to reflect a decrease in a growth hormone that will allow dairy supply to be 3 units at every price level.

125 million more gallons of milk can be offered by farmers to equilibrium price and quantity using the demand per year at each price.

The equations for the demand and supply of wheat are described.

Assume the government pays a subsidy.

$5 is a price ceiling.

Determine if the following are price floor, price ceiling, or neither.

Determine the milk tax on dairy farmers.
The use of the demand and supply shortage or surplus.

I looked at the faces of the poor people in the poor quarters of several of the fancy mathematical economic work that some of the cities had.

I wanted his fellow economists to do the same.
Marshall was able to complete a thorough study of Political Economy.

You won't see a lot of mathematical eco lieve to be the best reason to study economics.

One of the eco's follow the Marshallian methodology and present the min nomic giants of all times is from a hero of mine.
Marshall was talking about real-world issues.

For Marshall, model and show you how it can be used to analyze economics was micro economics, and it is his vision policy issues.

Section II, International Economic Policy of economics that underlies this book's approach to Issues, extends economic reasoning microeconomics.
Marshall believed economics was an art to international issues.
Section III, Production and Cost was supposed to be used to explain why Analysis was needed and how it relates to firms.

He didn't use the theory that Section IV, Market Structure (Chapters 13-16) didn't lead to a direct application to a real-world market structure.

Policy reflecting on the state of economics in 1906.

Section V, Factor Markets looks at a particular set of markets.

The markets that play a central role in determining the dis nomic hypotheses was very unlikely to be good economics, according to a growing feeling in the later years of my work at the subject.

I went more and more on the rules in these chapters, but they won't tell you how or what I did.

He was new to behavioral economics.

The real world was too messy to apply mathematics to change the nature of modern microeconomics.