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  • Estimating F parameters with GMM

    Hey all,

    I have drawn 1000 observation and generated F distribution with 10 and 32 as degrees of freedom using following commands
    set obs 1000
    set seed 12345
    generate y=invF(10,32 ,runiform( ))

    I have to estimate the F parameters using GMM estimation and I have used the following commands

    gmm (y -{d}), instruments() onestep
    gmm ((y-{d})^2 -2*{d}) ,instruments() onestep

    I am getting the following results
    Click image for larger version

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    g

    My problem is that I have to get two parameters for the estimation since i am getting only one parameter as you can see in the table -Can any help me how can I estimate two parameters of F distribution using GMM


    Thanking you
    fadi


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