Question 1
- Labor-hours is the input NOT the output
| Labor-hours | Fish | Wheat | 
|---|---|---|
| Country A | 10 | 20 | 
| Country B | 20 | 60 | 
- Convert to the quantity of outputs, assuming the labor-hours is 60
| Quantity | Fish | Wheat | 
|---|---|---|
| Country A | 6 | 3 | 
| Country B | 3 | 1 | 
- Country A has CA in wheat 
- Country B has CA in fish 
Question 3
- In a inflationary gap, the following occurs - An initial positive demand shock (real estate market booms) 
- AD shifts to the right, and so the aggregate price level and aggregate output increase, which leads to higher inflation in the short-run and reduces unemployment 
- Eventually, an increase in nominal wages in the long run decreases the SRAS and moves the economy back to potential output 
  
- Contractionary Fiscal Policy - Use contractionary fiscal policy to decrease aggregate demand in order to get the economy back to its potential output - Decrease government spending (direct impact) 
- Increase taxes 
- Decrease in government transfers 
 
- Graph 
  
Question 4
- Crowding-out effect - When the government borrows funds in the financial markets, it competes with private firms and "crowds out" private spending by raising interests rates and reducing long-run economic growth
 

Question 5
 
 
- MPC + MPS = 1 
Question 6
| Government Spending | Money Multiplier |  | 
|---|---|---|
| Taxes | Tax Multiplier |  | 
- When raising government spending and the taxes by the same amount, the impact of government spending will be greater than that of taxes
Question 7
  
| Expansionary Monetary Policy | Contractionary Money Policy | 
|---|---|
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
Question 9
- Expansionary monetary policy → r↓  
- Expansionary Fiscal Policy → Spend more money → Crowding-out effect → r↑  
- Expansionary policy will shift AD to the right, increase the GDP, therefore unemployment will decrease 
Question 10
- Sell securities = Shrink money supply = decrease total loans by banks
Question 11
- If the reserve ratio is low, more money circulate, so Fed will have more effect on rGDP
Question 12
- Labor productivity↑ → AS↑ → Price Level↓ & rGDP↑  
Question 14
- Phillips curve - x-axis: unemployment rate 
- y-axis: inflation rate 
 
- Short-run Phillips curve  
- Long-run Phillips curve  
- In short-run - High inflation rate, low unemployment rate 
- Low inflation rate, high unemployment rate 
 
Question 16

Question 17
- The equation of exchange - MV = PY 
- Expenditure = nominal GDP 
- M: money supply 
- V: velocity of circulation 
- P: price level 
- Y: real GDP 
 
- Velocity of circulation - the average number of times each dollar is spent on final goods and services
 
Question 18
| Expansionary fiscal policy | Contractionary monetary policy | |
|---|---|---|
| GDP | ↑ | ↓ | 
| Unemployment | ↓ | ↑ | 
| Interest rate | ↑ | ↑ | 
Question 19
- Supply of money ↑ = Value of money ↓ = Exports ↑
Question 20
 
- Inflation rate > 0: inflation 
- Inflation rate < 0: deflation