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Worksheet #4 DiD

  1. Usando los numeros de la Tabla 1, indica los valores de los coeficientes de las regresiones
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    ydt=α0+α16thDistrict+α2Post+δ6thDistrict×Post+ϵy_{dt}=\alpha_0+\alpha_1 6thDistrict+\alpha_2Post+\delta 6thDistrict\times Post + \epsilon

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    Answer

    α0=165,α1=−30,α2=−33,δ=19\alpha_0=165,\alpha_1=-30,\alpha_2=-33,\delta=19

  2. Usa los valores de cada grafico para encontrar los valores de la siguiente ecuacion:
    3. Ydt=α+βTreatd+γPostt+δDD(Treatd×Postt)+ϵdtY_{dt}=\alpha+\beta Treat_{d}+\gamma Post_{t}+\delta_{DD}(Treat_{d}\times Post_{t})+\epsilon_{dt}
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    Answer
    (a)  α=2,β=−1,γ=0,δ=2(b)  α=3,β=−1,γ=−2,δ=2(c)  α=2,β=0,γ=2,δ=−1(d)  α=3,β=0,γ=−2,δ=1\begin{align} (a)&\ \ \alpha=2,\beta=-1,\gamma=0,\delta=2 \\ (b)&\ \ \alpha=3,\beta=-1,\gamma=-2,\delta=2 \\ (c)&\ \ \alpha=2,\beta=0,\gamma=2,\delta=-1\\ (d)&\ \ \alpha=3,\beta=0,\gamma=-2,\delta=1 \\ \end{align}

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