Math Problem Statement

Решить задачу по эконометрике и дать пояснения и расчеты

Solution

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Math Problem Analysis

Mathematical Concepts

Econometrics
Regression analysis
Multicollinearity
Specification testing

Formulas

y_i = β_1 + β_2 x_2,i + β_3 x_3,i + β_4 x_4,i + ε_i
x_3,i = α_1 + α_2 x_2,i + α_3 x_4,i + v_i
y_i = β_1 + β_2 x_2,i + β_3 x_3,i + β_4 x_4,i + δ(ŷ_i^2) + u_i

Theorems

Ordinary Least Squares (OLS)
Coefficient of determination (R^2)
Multicollinearity diagnosis

Suitable Grade Level

Undergraduate - Graduate (Econometrics)