Question

A large open economy has desired national saving of Sd = 1200 + 1000rw, and desired national investment of Id = 1000 - 500rw. The foreign economy has desired national saving of = 1300 + 1000rw, and desired national investment of = 1800 - 500rw. The equilibrium world real interest rate equal to:________.

Answer 1

Answer: 10%

Explanation:

The Equilibrium real interest rate would be the interest rate that equates the Desired savings to the desired investment for both the National and foreign economy.

Desired national saving + Foreign desired national saving = Desired national investment + Foreign desired national investment

1,200 + 1,000rw + 1,300 + 1,000rw = (1,000 - 500rw) + (1,800 - 500rw)

2,500 + 2,000rw = 2,800 - 1,000rw

2,000rw + 1,000rw = 2,800 - 2,500

3,000rw = 300

rw = 0.1

rw = 10%