The Supply Curve
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0:00 - 0:05♪ [music] ♪
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0:13 - 0:15- [Narrator] Now that we've got
the demand curve down, -
0:15 - 0:17let's move on to the supply curve.
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0:17 - 0:20A supply curve shows how much
of a good suppliers -
0:20 - 0:24are willing and able to supply
at different prices. -
0:24 - 0:26As with the demand curve,
there's a supply curve -
0:26 - 0:28for every good and service.
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0:28 - 0:30And again the ideas
are the same, so let's look -
0:30 - 0:32at the supply curve for oil.
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0:32 - 0:34We see an intuitive relationship
between price -
0:34 - 0:36and the quantity supplied.
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0:36 - 0:38As the price goes up,
the quantity of oil -
0:38 - 0:41that companies are willing
to supply increases. -
0:41 - 0:44In this example, in a low price,
$5 per barrel, -
0:44 - 0:48let's say 10 million barrels
of oil are supplied per day. -
0:48 - 0:52At $20 per barrel,
25 million barrels are supplied, -
0:52 - 0:56and at $55 per barrel,
50 million barrels are supplied. -
0:56 - 0:59So in general, a higher price
means a greater quantity supplied. -
1:01 - 1:04Let's delve deeper and see why.
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1:04 - 1:05Oil exists all over the world,
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1:05 - 1:08but it's not equally easy
to extract. -
1:08 - 1:11In some places like Saudi Arabia,
it's really easy to get oil -
1:11 - 1:12out of the ground.
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1:12 - 1:14It's costs about $2 a barrel
to extract. -
1:14 - 1:16Oil in the US, like from Alaska,
is a lot deeper -
1:16 - 1:20and getting it out cost more,
at least $10 per barrel. -
1:20 - 1:23And producing oil from an oil rig,
like the Atlantis rig -
1:23 - 1:26in the Gulf Coast,
is even more expensive. -
1:26 - 1:28That rig has to descend
more than a mile underwater -
1:28 - 1:30before drilling even begins.
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1:30 - 1:34When oil prices are relatively low,
the only suppliers -
1:34 - 1:36that can turn a profit
are those who can get -
1:36 - 1:38to the oil cheaply,
like Saudi Arabia. -
1:39 - 1:41As the price goes up,
other suppliers in Nigeria, -
1:41 - 1:44Russia, and Alaska, who have higher
extraction costs, -
1:44 - 1:47start to become profitable
so they can enter the market. -
1:48 - 1:50As the price gets higher,
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1:50 - 1:52even the most expensive
extraction techniques -
1:52 - 1:54become profitable.
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1:54 - 1:57The supply curve slopes upward
because the only way the quantity -
1:57 - 2:00of oil can be increased
is to exploit higher and higher -
2:00 - 2:03cost sources of oil.
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2:03 - 2:04As the price of oil goes up,
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2:04 - 2:08the depth of the oil wells
goes down. -
2:08 - 2:12With this simple line
the supply curve summarizes -
2:12 - 2:15the way suppliers respond
to a change in price -
2:15 - 2:18including how suppliers
will enter and exit the market -
2:18 - 2:20depending on the price.
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2:21 - 2:23So far, we've said things
like if the price goes down, -
2:23 - 2:26buyers will want to buy more
or if the price rises, -
2:26 - 2:28suppliers will want to sell more.
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2:28 - 2:31But we haven't said anything
about how prices are determined. -
2:31 - 2:33That's the subject
for the next video, -
2:33 - 2:35Equilibrium.
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2:36 - 2:40If you want to test yourself,
click "Practice Questions." -
2:40 - 2:43Or if you're ready to move on,
just click "Next Video". -
2:43 - 2:49♪ [music] ♪
- Title:
- The Supply Curve
- Description:
-
{'type': u'plain'}
- Video Language:
- English
- Team:
- Marginal Revolution University
- Project:
- Micro
- Duration:
- 02:55
Martel Espiritu edited English subtitles for The Supply Curve | ||
Martel Espiritu edited English subtitles for The Supply Curve | ||
Martel Espiritu edited English subtitles for The Supply Curve | ||
pu phuc edited English subtitles for The Supply Curve | ||
MRU2 edited English subtitles for The Supply Curve | ||
MRUniversity edited English subtitles for The Supply Curve |