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# A2 b4 the disturbance term has zero expectationa3

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Unformatted text preview: omly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Assumptions of Model B Below are the 8 assumptions of Model B: B.1 The model is linear in parameters and correctly speciﬁed.(A.1) B.2 Values of regressors are drawn randomly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) B.4 The disturbance term has zero expectation.(A.3) Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Assumptions of Model B Below are the 8 assumptions of Model B: B.1 The model is linear in parameters and correctly speciﬁed.(A.1) B.2 Values of regressors are drawn randomly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) B.4 The disturbance term has zero expectation.(A.3) B.5 The disturbance term is homoscedastic.(A.4) Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Assumptions of Model B Below are the 8 assumptions of Model B: B.1 The model is linear in parameters and correctly speciﬁed.(A.1) B.2 Values of regressors are drawn randomly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) B.4 The disturbance term has zero expectation.(A.3) B.5 The disturbance term is homoscedastic.(A.4) B.6 The values of the disturbance term have independent distributions.(A.5) Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Assumptions of Model B Below are the 8 assumptions of Model B: B.1 The model is linear in parameters and correctly speciﬁed.(A.1) B.2 Values of regressors are drawn randomly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) B.4 The disturbance term has zero expectation.(A.3) B.5 The disturbance term is homoscedastic.(A.4) B.6 The values of the disturbance term have independent distributions.(A.5) B.7 The disturbance term is distributed independently of regressors. New! Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Assumptions of Model B Below are the 8 assumptions of Model B: B.1 The model is linear in parameters and correctly speciﬁed.(A.1) B.2 Values of regressors are drawn randomly from ﬁxed populations. New! B.3 No exact linear relationship among the regressors.(A.2) B.4 The disturbance term has zero expectation.(A.3) B.5 The disturbance term is homoscedastic.(A.4) B.6 The values of the disturbance term have independent distributions.(A.5) B.7 The disturbance term is distributed independently of regressors. New! B.8 The disturbance term has a normal distribution.(A.6) Introduction Measurement Error Simultaneous Equations Past Exam Practice Question Today’s Lecture Gauss-Markov Theorem Theorem Provided that Model B assumptions are satisﬁed, the OLS estimators are BLUE: Best; most efﬁcient Linear;...
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