Final answer:
Increased inflation in the U.S. will decrease the demand for Canadian goods and worsen U.S. net exports while causing the USD to depreciate. Canada's national income may decrease, while exchange rate shifts will be reflected in the foreign exchange market graphs for USD and CAD. Japan's tax increase on businesses may lead to yen depreciation and RMB appreciation, and Brazil's real appreciation would decrease its net exports but may attract foreign investment.
Step-by-step explanation:
A rise in the price level in the United States, due to inflationary pressure, affects both U.S. demand for Canadian goods and services as well as U.S. net exports.
An increased price level makes U.S. exports less competitive abroad and imports from Canada more attractive to U.S. consumers, leading to a decrease in U.S. demand for Canadian goods and services and worsening U.S. net exports.
In terms of exchange rates, higher inflation in the U.S. compared to Canada would decrease the demand for U.S. dollars and increase the supply, leading to a depreciation of the U.S. dollar.
This change is represented on an AD-AS model by a movement to the left of the AD curve, indicating a potential decrease in real GDP and an increase in the price level in the domestic economy. However, outputs are dependent on the responsiveness of the aggregate supply.
Considering Canada's perspective ceteris paribus, a decrease in U.S. demand for Canadian goods suggests that Canada's national income might decrease unless compensated by other factors such as increased domestic demand or improved trade with other partners.
In the foreign exchange markets, the supply and demand curves for the respective currencies adjust to reflect these changes, with the supply of USD increasing and the demand for CAD also increasing, thereby affecting exchange rates accordingly.
In the case of Japan increasing taxes for businesses, the Japanese yen would likely depreciate because higher taxes can reduce economic activity, leading to decreased demand for the currency.
This depreciation is shown on a foreign exchange market graph as a shift in demand for the yen to the left. Given the new exchange rate, the Chinese renminbi would appreciate relative to the yen.
If Brazil's currency, the real, appreciates compared to the euro, Brazil's net exports would likely decrease because Brazilian goods and services become more expensive to foreigners. Brazil's capital and financial account might see an inflow as the stronger real attracts foreign investment seeking to benefit from the currency appreciation.