Assume That Initially, the Risk Premium, ρ = 0 and That

Essay

Assume that initially, the risk premium, ρ = 0 and that the domestic and foreign interest rates are given by R = .06, R* = .05. Suppose that the risk premium depends linearly on the difference between domestic government debt, B, and domestic assets of the central bank, A, i.e.
ρ = ρ^(B-A)
How much will the central bank have to reduce domestic assets A s.t. the domestic interest rate will increase by (a) 1% (b) 4%?