The following table contains data for a hypothetical open economy. The amount of investment spending is unknown.
GDP $8,000
Consumption (C) $4,000
Government spending (G) $1,100
Tax (T) $1,300
Transfer payment (TR) $500
Export (X) $500
Import (IM) $350
1: What is the level of private savings?
2: What is the level of government savings?
3: What is the status of the budget balance?
4: What is the level of national savings?
5: According to the savings-investment spending identity for an open economy, what is the amount of investment spending in this economy?