The table below shows the changes in key macroeconomic variables for an open economy over a fiscal year.
| Economic Variable | Change (£ billion) |
|---|---|
| National Income | +400 |
| Savings | +30 |
| Tax Revenues | +50 |
| Spending on Imports | +20 |
Using this data, which one of the following represents the value of the multiplier for this economy?
0.250.250.25
4.04.04.0
5.05.05.0
13.3313.3313.33
