Price Ceilings: Lines and Search Costs
-
0:09 - 0:13- [Alex] In this video, were going to take
a look at another effect of price -
0:13 - 0:18ceilings: wasteful lines and other
search costs. Let's get started. -
0:23 - 0:28It's important to understand that price
controls do not eliminate competition. -
0:28 - 0:35Competition for scarce goods is an ever
present force under all forms of social -
0:35 - 0:40organization. What price controls do is
they change the form that competition -
0:40 - 0:48takes. So in a market, demanders compete
by pushing prices up. Suppliers compete by -
0:48 - 0:54pushing prices down. When we have price
controls, that shifting of prices is no -
0:54 - 0:59longer possible. But competition remains -
it just takes other forms. Here's an -
0:59 - 1:05example of musical chairs. The quantity
demanded exceeds the quantity supplied. -
1:05 - 1:11There's a shortage. But there's still lots
of competition, lots of scrambling to get -
1:11 - 1:16hold of those goods which are in short
supply. So lets take a closer look at some -
1:17 - 1:21of the forms that competition takes when
we have price controls and shortages. -
1:22 - 1:26So suppose there's a price control on
gasoline and oil, making it illegal to -
1:27 - 1:31compete for these goods by pushing the
price up. Nevertheless, there are other -
1:31 - 1:36ways of competing. Some buyers, for example, might
try bribing the station owners. This is not -
1:36 - 1:40necessarily the first thing which would
happen in the United States, but in other -
1:40 - 1:44places and countries this is extremely
common. Having a cousin who works in the -
1:44 - 1:49factory which is producing the good which
is in shortage is extremely important. -
1:49 - 1:53Using ones political connections, being
part of the political elite is -
1:53 - 1:57extremely important for obtaining goods,
which are in shortage. Even in the United -
1:58 - 2:02States, remember that firms also need
oil and gasoline in -
2:02 - 2:05order to operate. And in the
1970s when there was a -
2:05 - 2:10shortage of oil, firms appealed to the
Department of Energy, they lobbied their -
2:10 - 2:14Congressman and their Senator to obtain an
allocation of oil for their firm. -
2:15 - 2:21For consumers, another way to obtain the
good is to be willing to wait in line. -
2:22 - 2:27Now time waiting in line is also a cost.
So let's ask, "How long will the -
2:27 - 2:32line get?" We can use our model to
understand willingness to wait in line -
2:32 - 2:35and how long the lines will get.
Let's take a look. -
2:36 - 2:40So here's our supply and demand diagram
of the shortage. Remember that at the -
2:40 - 2:45controlled price we read the quantity
demanded off the demand curve, Qd, and at -
2:45 - 2:51the controlled price we read quantity supplied off
the supply curve, Qs. So Qs is the actual -
2:51 - 2:57amount of gasoline supplied given the
controlled price of one dollar. Now, here -
2:57 - 3:04is the key question: How much are buyers
willing to pay for a gallon of gasoline, -
3:05 - 3:11when Qs is the amount which is being
supplied? How much are buyers willing to -
3:11 - 3:15pay? What is the most they are willing to pay for
a gallon of gasoline? Well remember, we can -
3:15 - 3:19read that off the demand curve - that's
what the demand curve tells us. So at the -
3:20 - 3:25controlled price, when the quantity
supplied is Qs, buyers are willing to pay -
3:25 - 3:31$3 per gallon of gasoline. Theyre
only allowed to pay in money $1. -
3:31 - 3:39So, if a buyer were to obtain a
gallon of gasoline at a controlled price -
3:39 - 3:45of $1, that's actually worth to
them $3. That explains why -
3:46 - 3:52people are willing to wait in line for a
long time in order to get gasoline, because -
3:52 - 3:57the shortage has reduced the quantity
supplied. It's raised the -
3:57 - 3:58willingness to pay for gasoline,
-
3:58 - 4:04but it hasn't raised the price of
gasoline. Therefore people are willing to -
4:04 - 4:12wait in line. And, in fact, the line
will grow until on the margin the -
4:12 - 4:19time price plus the money price will be
equal to the willingness to pay. So the -
4:20 - 4:25line will grow until the money price,
which is $1/gallon, plus the -
4:25 - 4:33time price, the time wasted in line, which
will grow up until it's $2/gallon, -
4:33 - 4:38until the total price equals the
willingness to pay. Why is that? Well, -
4:38 - 4:44imagine that that were not the case. Imagine
that you could obtain a gallon of gasoline -
4:44 - 4:49which is worth $3 for you. And you
only had to pay a dollar plus 50 cents -
4:49 - 4:54in waiting time. Well that would be a
great deal. So people will be willing to -
4:54 - 5:01wait in line so long as the total price,
the money price plus the time price, is -
5:01 - 5:06less than the willingness to pay. This
means that the line will continue to grow -
5:06 - 5:12until the total price is equal to the
willingness to pay. So, if we now take the -
5:12 - 5:18time price, which is the difference between the
willingness to pay and the controlled -
5:18 - 5:25price, times the quantity - that gives us the
total value of wasted time. So, another -
5:26 - 5:31effect of price controls - it creates long
lines in order to compete to get the good -
5:32 - 5:37instead of bidding the price up, they bid
in terms of being willing to wait in line. -
5:37 - 5:41And those lines are wasteful, creates a
lot of wasted time. -
5:43 - 5:46Let's take a look with a numerical
example. Okay, here's a simple numerical -
5:47 - 5:52example to bring this home. Suppose that
buyers value their time at $10/hour, -
5:52 - 5:57and that the average fuel tank holds 20
gallons. Now imagine that a buyer arrives -
5:57 - 6:00early at the gasoline station
and they wait one hour. -
6:00 - 6:07The total cost of the gasoline
is then $20, $1/gallon times 20 -
6:07 - 6:10gallons in money cost,
plus $10 in time cost. -
6:10 - 6:14They waited an hour
and they value their time -
6:14 - 6:19at $10/hour. So the total cost of
the gasoline is then $30. It took -
6:19 - 6:26$30 worth of time and money in order to
get 20 gallons. So the implied cost per -
6:26 - 6:32gallon is $1.50/gallon. However,
remember that given the quantity supplied, -
6:32 - 6:38given the shortage, the value of
gasoline is $3/gallon. So this buyer -
6:38 - 6:43managed to obtain something which
is worth $3/gallon for only $1.50 -
6:43 - 6:50per gallon. That's a good deal so other
buyers are going to bid up the price -
6:50 - 6:56by arriving earlier and earlier. And this
is going to push up the time cost. The -
6:56 - 7:01money cost is fixed because of the price
control, but the time cost can still -
7:01 - 7:09increase. In fact, the line will lengthen
until the total cost of obtaining 20 -
7:09 - 7:16gallons of gasoline equals $60 or
$3/gallon. In other words, the -
7:16 - 7:25buyers will end up spending $20 in money
cost plus $40 in time cost, or four hours of -
7:25 - 7:30waiting. So we're able to calculate
approximately how long the line will get. -
7:30 - 7:37It will get four hours worth of time. So
this again illustrates that competition -
7:37 - 7:43does not go away when we have price
controls. Instead competition takes -
7:43 - 7:49different forms, and one of those forms is -
instead of bidding up the money price, the -
7:49 - 7:56time price is bid up and we get long and
wasteful lines. So what we've just seen -
7:56 - 8:01is that in a free market, buyers compete to
obtain goods by bidding up money -
8:01 - 8:07prices. And when we have price controls,
one way that buyers compete to obtain -
8:07 - 8:12goods is by bidding up time prices, by
being willing to wait in line. So what's a -
8:12 - 8:17better form of competition? Bidding or
paying in money or paying in time? Does it -
8:18 - 8:21make a difference? After all, some people
have got more money, some people have got more -
8:21 - 8:27time, is it just a matter of preference?
No. It is much better to have an economic -
8:28 - 8:33system where competition takes the form of
bidding in money than it takes the form of -
8:33 - 8:43bidding in time. Why? Paying in time is
much more wasteful. When you bid in terms -
8:43 - 8:49of money, the money goes to the station
owner. The money does not disappear. That -
8:49 - 8:55purchasing power is transferred from the
consumer to the producer. On the other -
8:55 - 9:01hand, when buyers bid in terms of time,
when they wait in line, that waiting in -
9:02 - 9:07line is just lost. It's not transferred to
the producer. When you wait in line for -
9:07 - 9:14four hours to obtain gasoline, the seller
of gasoline doesn't get to add four hours -
9:14 - 9:20to his lifespan. So that waiting in line
is just a total loss. When you pay in -
9:20 - 9:26money, the purchasing power is transferred
to the station owner. When you pay in -
9:27 - 9:33terms of time, the value of that time
is simply lost. It benefits no one. -
9:33 - 9:38Okay, quick reminder of where we are. Price
ceilings have five important effects. We've -
9:38 - 9:42looked at shortages and reductions in product
quantity. We've just completed wasteful -
9:43 - 9:46lines and other search costs. Up next,
a loss in gains from trade, -
9:46 - 9:49and then a misallocation of resources.
-
9:50 - 9:55- [Announcer] If you want to test yourself, click
Practice Questions. Or, if you're ready to -
9:55 - 9:57move on, just click Next Video.
- Title:
- Price Ceilings: Lines and Search Costs
- Description:
-
In this video, we explore two more unintended consequences of price ceilings: long lines and search costs. What was it like waiting in long lines for gasoline back in the 1970s? Not fun. But why did this happen? When price ceilings were imposed on gasoline, people could not use prices to signal how much they were willing to pay for gas. Instead, the only way they could show how much (or how little) they wanted of gasoline, was to wait (or not wait) in line. Going to fuel up becomes less about paying in money and more about paying in time. At the end of the day, paying in time is much more wasteful. In this video, we’ll show how to calculate the value of the time wasted in line.
Microeconomics Course: http://mruniversity.com/courses/principles-economics-microeconomics
Ask a question about the video: http://mruniversity.com/courses/principles-economics-microeconomics/price-ceiling-gasoline-example-search-costs#QandA
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- Video Language:
- English
- Team:
Marginal Revolution University
- Project:
- Micro
- Duration:
- 10:02
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Martel Espiritu edited English subtitles for Price Ceilings: Lines and Search Costs | |
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Martel Espiritu edited English subtitles for Price Ceilings: Lines and Search Costs | |
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Martel Espiritu edited English subtitles for Price Ceilings: Lines and Search Costs | |
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MRU2 edited English subtitles for Price Ceilings: Lines and Search Costs | |
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MRU2 edited English subtitles for Price Ceilings: Lines and Search Costs | |
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MRU2 edited English subtitles for Price Ceilings: Lines and Search Costs |