00:01
When a technological advance lowers the world price of televisions, the effect on united states, an importer of tv, can be shown in this figure.
00:18
Initially, the world price of tv is p1.
00:22
Consumer surplus is a plus b.
00:32
Producer surplus is c plus g.
00:45
Um, g should be here.
00:52
Total surplus is a plus b plus c plus g.
01:00
So total surplus is the sum of consumer surplus and producer surplus.
01:09
The initial level of imports is shown as i am sub 1.
01:33
So after the improvement in technology, the world price of television declines to p2, which is p1 minus 100.
02:03
Consumer surplus increases by d plus e plus f.
02:17
Producers surplus declines by c.
02:26
Total surplus rises by d plus e plus f.
02:57
Okay, so consumer surplus must increase by the sum of c to f.
03:05
Therefore we have total surplus increased by d plus e plus f.
03:13
Part c can solve out.
03:17
The amount of imports rises to import sub 2.
03:40
Part b the areas are calculated as follows.
03:50
Area c you will get 200 ,000 times 100 plus 0 .5 times 200 ,000 times 100.
04:16
The sum of it is 30 million.
04:24
Area d, 0 .5 times 200 ,000 times 100, which is 10 million.
04:48
Part e, area e, you will get 600 ,000 times 100...