单选题

In a simple economy with no foreign sector, the following equations apply:

Consumption function C=2,500+0.80 × (Y-T)
Investment function I=500+0.30 × Y-25× r
Government spending G=1,000   
Tax function T=-250+0.30×Y 
Y: Aggregate income r: Real interest rate

If the real interest rate is 3% and government spending increases to 2,000, the increase in aggregate income will be closest to:

【正确答案】 C
【答案解析】

C is correct.