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Definition
1)Model is Linear in the Parameters 2) The X Variable is Uncorrelated with the U disturbance term 3) E(u/Xi) = 0 4) Each ui variance is homoskedastic (constant) 5) No correlation between two error terms 6) No specification bias (all relevant variables included) 7) ui is normally distributed (mean 0, variance sigma^2) |
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Definition
min(b1,b2,b3)Sigma(e^2) = RSS = Sigma(Yi - b1 - b2x2 - b3x3...)^2 |
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Goodness of Fit/R^2 equation |
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Definition
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Definition
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Partial Regression Coefficient |
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Definition
Reflects the (partial) effect of one explanatory variable on the mean value of the dependent variable when the values of other explanatory variables included in the model are held constant. |
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Coefficient of Determination |
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Definition
The proportion in variation of the dependent variable explained by all independent variables in the regression model. |
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Definition
Multiple (exact) linear relationships exist between variables in an estimated multiple regression function. |
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Definition
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Definition
lnY = B1 + B2LnX (elasticity) |
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Definition
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Definition
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Definition
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Definition
Y = B1 + B2X + B3X^2 + B4X^3 |
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Dubin-Watson Statistic EQN |
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Definition
d= (Sum(Et - E(t-1))/(Sum Et^2) or d approx = 2(1-p) (p: Covariance of Et & Et-1 |
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Correct Variance Methods (3) |
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Definition
1) Divide through by SQRT variance 2) Divide through by SQRT of X 3) Divide through by X |
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Dummy Variable Regression Iterations (4) |
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Definition
1) Coincidental Regression 2) Concurrent Regression 3) Parallel Regressions 4) Dissimilar Regressions |
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