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Math Help - Cramer's rule

  1. #1
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    Cramer's rule

    Im trying to solve this using Cramer's rule. Having trouble with doing initial rearranging into Ax=b


    C=α+βY
    I=γ+θr
    Y=C+I
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  2. #2
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    Quote Originally Posted by molimoli View Post
    Im trying to solve this using Cramer's rule. Having trouble with doing initial rearranging into Ax=b
    C=α+βY
    I=γ+θr
    Y=C+I
    C, α, β, Y, I, γ, θ, r

    You have both an upper case Y and a lower case y.
    You have eight (8) variables.
    The Cramer's rule that I use, requires n equations for n variables.

    Could you elaborate?
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  3. #3
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    the lower case y is a gamma. and the a an alpha. Sorry i cannot seem to make the equations bigger.

    Y C and I are endogenous
    r is exogenous
    alpha, beta, gamma and theta are known constants
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