1303AFE Lecture Notes - Lecture 11: Devaluation, Japanese Yen, Import Quota

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Week 11 Economic for Decision Making lecture notes
International trade and exchange rate
International Trade
Australia in the global trade
Global trade is enormous
In 2014, global exports and imports were about $25 trillion, about 31% of global
production
In 2024, total Australian exports were $239 billion, about 21% of the value of total
Australian production
In 2014, total Australian imports were $331 billion, about 21% of the value of total
expenditure in Australia
What drives international trade?
The fundamental force that generates trade between nations is comparative
advantage
National comparative advantage is the ability of a nation to perform an activity or
produce a good or service at a lower opportunity cost than any other nation
o E.g. Japan-cars; Australia- coal
Both countries can reap gains from trade by specializing in the production of the
good at which they have a comparative advantage and then trading
Both countries gain from trading with each other based on their comparative
advantage
How international trade works? (demand supply analysis)
Why Australia import cars?
o Figure shows that with no international trade,
1. Australian demand and supply determine that
2. The price in Australia is $24,000 a car
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3. Australian firms produce 2 million cars a year and Australians buy 2
million cars a year
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o The demand for and supply of cars in the world determine the world price at
$15,000 a car
o The world price is less than $24,000, so the rest of the world has a
comparative advantage in producing cars
o Figure shows that with international trade,
4. The price in Australia falls to $15,000 a car
o with international trade,
5. Australians increase the quantity they buy to 3 million cars a year
6. Australian car makers decrease the quantity they produce to 1
million cars a year
7. Australia imports 2 million cars a year
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