00:01
Here we are continuing on with some microeconomics and so the international trade is trading of goods, services and labour.
00:08
So this happens across the border of two countries and so export is when a country is selling their domestically produced products to a foreign country.
00:17
On the other hand, we can look at import, which is when a country is buying goods and services from the foreign country.
00:24
So when export is more than import, then there is a trade surplus and when import is more than export, then there is a trade deficit.
00:32
So looking at part a here, we can calculate the exchange rate between the peso of country w and the dollar of country e.
00:40
So we have e is equal to the price of spam in peso, which is 24 divided by the price of spam in dollar, which is four.
00:49
So therefore we have 24 divided by four.
00:52
And so that gives us six pesos per dollar.
00:55
So the exchange rate between pesos in country w and dollar in country e is six pesos per dollar.
01:03
Moving on to part b here, so the rule of 70 says that the doubling period of a variable is 70 divided by the average growth rate of that variable.
01:13
So it is given that inflation in country e, we sought to be 3 .5%.
01:18
So it will take 70 divided by 3 .5%.
01:22
So in other words, it will take 20 years to double.
01:26
So after 20 years, the price of spam in the country e will be $8.
01:34
So it was given that the inflation of country w was 7%...