Foreword |
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xvii | |
Preface |
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xix | |
Author's Note |
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xxi | |
Notations Used |
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xxiii | |
Abbreviations |
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xxvii | |
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1 Definitions And Scope Of Econometrics |
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1 | (36) |
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I Why do we study econometrics? |
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3 | (2) |
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5 | (1) |
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III Data employed in econometric analysis |
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6 | (6) |
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Primary data and Secondary data |
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6 | (2) |
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Cross-sectional data and Time series data |
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8 | (3) |
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Univariate data, Bivariate data and Multivariate data |
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11 | (1) |
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Micro data and Macro data |
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12 | (1) |
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IV Terminology used in econometric analysis |
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12 | (4) |
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V Methodology of econometrics |
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16 | (21) |
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35 | (2) |
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37 | (52) |
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I Pearson's correlation coefficient `r' |
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38 | (1) |
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39 | (3) |
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42 | (2) |
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Positive correlation, Negative correlation and Zero correlation |
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42 | (1) |
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Linear correlation and Non - linear correlation |
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43 | (1) |
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IV Methods or Formulae to Compute Correlation Coefficient |
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44 | (7) |
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V Test of significance of `r' |
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51 | (1) |
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VI Methods of studying the significance of `r' value |
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52 | (6) |
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VII Properties of correlation coefficient `r' |
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58 | (6) |
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VIII Numerical Examples for computation of correlation coefficient |
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64 | (10) |
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IX Coefficient of determination (r2) |
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74 | (2) |
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Relationship between r and r2 |
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75 | (1) |
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76 | (1) |
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X Spearman's Rank correlation coefficient `rs' |
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76 | (8) |
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77 | (1) |
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78 | (5) |
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Test of significance of `rs' |
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83 | (1) |
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XI Partial correlation coefficient |
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84 | (5) |
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86 | (3) |
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89 | (26) |
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I Methods of estimating regression equations or derivation of regression line |
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92 | (13) |
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Deriving regression equation through normal equations |
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93 | (1) |
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Deriving regression equation through regression coefficients |
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94 | (11) |
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II Properties of regression coefficient and relationship between correlation and regression |
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105 | (9) |
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Differences between Correlation and Regression |
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109 | (5) |
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III Tests of Significance in Regression |
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114 | (1) |
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Classification of Regression Models |
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114 | (1) |
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4 Basic Concepts In Simple (Two-Variable) Regression Analysis (SLRM) |
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115 | (84) |
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119 | (6) |
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121 | (4) |
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125 | (4) |
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III OLS estimation of SLRM |
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129 | (5) |
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134 | (11) |
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Assumptions of OLS estimator |
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134 | (1) |
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Features of OLS method or estimator |
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135 | (2) |
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Characteristics of the OLS Coefficient Estimates, a and b |
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137 | (8) |
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V Interpretation of OLS sample estimates a and b |
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145 | (1) |
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145 | (10) |
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147 | (2) |
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149 | (1) |
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149 | (6) |
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VII SE around the estimated regression line (SEYX) |
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155 | (3) |
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VIII Coefficient of determination - Test of Goodness of fit of regression line in SLRM |
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158 | (5) |
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158 | (3) |
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161 | (2) |
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IX Mean and variances of the sample estimates in SRF aandb in SRF |
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163 | (1) |
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X Test of significance of SLRM |
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164 | (7) |
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XI Numerical examples in simple linear regression |
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171 | (10) |
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XII How the slope of regression equation changes due to changes in the units of measurement of variables |
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181 | (9) |
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XIII Regression Through Origin (RTO) or Regression model without intercept i.e., estimation of a regression function, whose intercept is zero |
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190 | (1) |
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XIV Elasticity vs Slope in an estimated regression equation |
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191 | (8) |
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194 | (5) |
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5 Assumptions Of The Classical Linear Regression MODEL (CLRM) |
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199 | (24) |
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I Assumptions about independent variable (X) |
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200 | (12) |
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II Assumptions related to error term, `u' |
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212 | (8) |
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III Other assumptions related to dependent variable, Y |
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220 | (3) |
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6 Establishing The Criteria For Judging The Goodness Of The Parameter Estimates |
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223 | (6) |
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I Specification of the model |
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223 | (3) |
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Variables that are to be included in the model |
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224 | (1) |
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Size (Magnitude) and signs of the estimates |
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224 | (1) |
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Formulation of the econometric model |
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225 | (1) |
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II Estimation of the model by employing an appropriate econometric method |
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226 | (1) |
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III Evaluation of the estimates |
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227 | (1) |
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Economic `a priori' criteria or Theoretical criteria |
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227 | (1) |
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Statistical criteria or First order tests |
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227 | (1) |
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Econometric criteria or Second order tests |
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228 | (1) |
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IV Forecasting the findings of econometric model |
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228 | (1) |
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7 Tests Of Significance Of The Parameter Estimates And Gauss-Markov Theorem |
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229 | (1) |
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I Means and Variances of OLS estimates |
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230 | (15) |
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245 | (1) |
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III Steps in testing of hypothesis |
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245 | (39) |
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General procedure for statistical testing of hypothesis |
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283 | (1) |
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III Errors in drawing conclusions in research |
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284 | (5) |
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Type I error, Type II error |
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285 | (4) |
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IV Size of test vs Power of a test |
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289 | (1) |
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Benefits of Hypothesis testing |
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290 | (1) |
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290 | (27) |
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Small or Finite Sample Properties |
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294 | (1) |
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295 | (3) |
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298 | (7) |
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305 | (1) |
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305 | (2) |
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Minimum Mean-Square-Error (MSE) |
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307 | (1) |
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308 | (1) |
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Large Sample or Asymptotic Properties: Consistency |
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309 | (2) |
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Importance of BLUE properties of OLS estimates |
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311 | (1) |
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312 | (5) |
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8 Functional Form Specifications Of (LINEAR) Regression Model |
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317 | (73) |
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I Linear regression model |
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320 | (8) |
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II Different functional forms of Linear regression model |
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328 | (62) |
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328 | (18) |
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Double log functional form or Log-Log (Double-log) model |
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346 | (10) |
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Polynomial functional form |
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356 | (15) |
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371 | (5) |
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Regression Through Origin (RTO) Model |
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376 | (4) |
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Choice of Functional Form |
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380 | (1) |
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Box-Cox Test for comparing different forms of linear regression models |
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381 | (3) |
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Other Tests for Functional Form |
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384 | (1) |
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384 | (1) |
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Ramsey's Regression Specification Error Test (RESET) Test |
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385 | (5) |
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9 Multiple Linear Regression Model (MLRM) |
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390 | (119) |
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I Differences between SLRM and MLRM |
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391 | (3) |
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394 | (7) |
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The MLRM Building - Input to a regression problem |
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394 | (4) |
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MLRM with Two Independent variables |
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398 | (3) |
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MLRM with `k' Independent variables |
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401 | (1) |
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401 | (4) |
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IV Deriving normal equations for MLRM |
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405 | (5) |
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Considering actual values of observations |
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405 | (2) |
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Considering deviations of observations of variables taken from their respective means |
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407 | (3) |
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V General procedure to derive normal equations of MLRM for `k' variables |
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410 | (1) |
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VI Normal equations in SLRM and MLRM |
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411 | (1) |
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VII Interpretation of MLRM Equation |
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412 | (5) |
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Interpretation of the intercept |
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413 | (1) |
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Interpretation of partial regression coefficients |
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413 | (3) |
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416 | (1) |
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VIII Properties of OLS estimates in MLRM |
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417 | (4) |
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IX Expressions for the OLS coefficient estimates of (three variable) MLRM |
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421 | (4) |
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X Goodness of fit of MLRM (R2) |
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425 | (4) |
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Derivation of formula of R2 All Generalization of formula of R2 |
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428 | (1) |
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429 | (1) |
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XI Adjusted Coefficient of Multiple Determination (R2) |
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429 | (3) |
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Differences between R2 and R2 |
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430 | (2) |
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XII Tests of significance of MLRM |
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432 | (18) |
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Test of significance of individual sample estimate or individual partial regression coefficient |
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433 | (3) |
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Test for the overall significance of MLRM |
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436 | (8) |
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Regression statistics table |
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444 | (1) |
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445 | (1) |
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Regression Coefficients Table |
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446 | (1) |
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Test Hypothesis of estimated slope coefficients (Test of statistical significance of slope coefficient estimates) |
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447 | (2) |
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Confidence Intervals for Partial Slope Coefficients |
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449 | (1) |
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Predicted Value of Y from sample estimates |
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450 | (1) |
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XIII The Regression Equation: Standardized Coefficients |
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450 | (5) |
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XIV Incremental or Marginal contribution of an independent variable |
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455 | (6) |
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XV Testing the equality of two regression coefficients |
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461 | (1) |
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XVI Regression analysis under linear restrictions and preliminary test estimation |
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462 | (3) |
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XVII Relationship between SLRM and MLRM |
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465 | (1) |
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XVIII Different methods of entering independent variables in the MLRM |
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465 | (11) |
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467 | (1) |
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467 | (3) |
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470 | (1) |
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471 | (2) |
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Backward elimination or deletion |
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473 | (3) |
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XIX Extension of MLRM to non-linear relationships |
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476 | (1) |
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XX Regression and Analysis of Variance (ANOVA) |
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477 | (12) |
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ANOVA as a statistical method to study variation |
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478 | (6) |
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484 | (3) |
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Comparison of ANOVA and regression analysis |
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487 | (2) |
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XXI Multiple Regression - Specification Bias |
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489 | (11) |
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Omission of right independent variable from the model |
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489 | (7) |
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Inclusion of irrelevant independent variable into the model |
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496 | (4) |
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XXII MLRM with interaction among independent variables |
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500 | (9) |
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506 | (3) |
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10 Relaxing The Assumptions Of Clrm |
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509 | (5) |
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514 | (72) |
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I Why is multicollinearity a problem? |
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515 | (1) |
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II Types of multicollinearity |
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516 | (3) |
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Exact or Perfect Multicollinearity |
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516 | (1) |
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Near or less than perfect or Imperfect Multicollinearity |
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517 | (2) |
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III Sources of multicollinearity |
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519 | (2) |
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IV Examples for multicollinearity |
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521 | (3) |
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V Consequences of Multicollinearity |
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524 | (10) |
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524 | (2) |
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526 | (8) |
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VI Detecting multicollinearity |
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534 | (52) |
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Tests for detecting multicollinearity problem in MLRM |
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554 | (1) |
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Frisch's Confluence Analysis or Bunch Map Analysis |
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554 | (14) |
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The Farrar - Glauber test for multicollinearity |
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568 | (6) |
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Solutions for the incidence of multicollinearity |
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574 | (12) |
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586 | (97) |
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I Forms of heteroscedasticity |
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586 | (6) |
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586 | (1) |
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Impure heteroscedasticity |
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587 | (5) |
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II Reasons for the presence of heteroscedasticity |
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592 | (5) |
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III Interpretation and graphical representation of homoscedasticity and heteroscedasticity |
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597 | (1) |
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IV Consequences of the violation of the assumption of homoscedasticity |
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598 | (8) |
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V Differences between OLS and GLS Methods |
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606 | (1) |
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Case 1 Transforming the variables and applying OLS |
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608 | (1) |
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Case 2 Application of GLS method |
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608 | (2) |
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Deriving the GLS Estimates for a General Linear Regression Model with Heteroscedasticity |
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610 | (1) |
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611 | (1) |
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Problems with Using the GLS Estimator |
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612 | (1) |
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Feasible Generalized Least Squares (FGLS) Estimator |
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612 | (1) |
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VI Tests for Detection of heteroscedasticity problem |
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613 | (1) |
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614 | (1) |
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614 | (1) |
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Graphical method (Residual plot method) |
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614 | (2) |
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616 | (1) |
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616 | (6) |
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622 | (6) |
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Spearman rank correlation test |
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628 | (3) |
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631 | (5) |
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Koenker-Bassett (KB) test |
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636 | (4) |
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Breusch-Pagan-Godfrey (BPG) test |
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640 | (6) |
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646 | (13) |
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VII Solutions for heteroscedasticity problem |
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659 | (20) |
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Transforming the Heteroscedastic model |
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659 | (1) |
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When σ2iμ is specified or known |
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659 | (8) |
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Use of Robust SEs - Robust inference after OLS |
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667 | (8) |
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Change the functional form of regression model |
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675 | (1) |
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676 | (3) |
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VII Testing for Heteroscedasticity in Time Series Data |
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679 | (4) |
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683 | (123) |
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I FOARS or First order Markov Process |
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684 | (1) |
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II Second Order Autoregressive Scheme (SOARS) |
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684 | (3) |
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III Calculation of `p' in case of FOARS for population data |
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687 | (1) |
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IV Calculation of `p' in case of FOARS for sample data |
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687 | (2) |
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V Autocorrelation vis-a-vis Serial Correlation |
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689 | (2) |
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690 | (1) |
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True or Pure autocorrelation |
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691 | (1) |
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False or Impure autocorrelation |
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691 | (1) |
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VI Sources of autocorrelation |
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691 | (6) |
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VII Estimation of Error term (μt) in the presence of autocorrelation (FOARS) |
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697 | (1) |
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VIII Mean, Variance and covariance of autocorrelated error terms |
|
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698 | (3) |
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IX Consequences of Autocorrelation or Consequences of using OLS in the presence of Autocorrelation |
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701 | (15) |
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X Detection of autocorrelation or Tests for autocorrelation |
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716 | (34) |
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716 | (1) |
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716 | (2) |
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Plot residuals and lagged values in a 4-Quadrant Diagram 1\1 Plot residuals across time |
|
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718 | (1) |
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Plot Standardized Residuals across time |
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719 | (2) |
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Quantitative approach or Formal tests |
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721 | (1) |
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721 | (3) |
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724 | (16) |
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740 | (2) |
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Berenblut-Webb's `g' test |
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742 | (1) |
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Theil Nagar's Modified `d' statistic |
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743 | (1) |
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An alternative test for autocorrelation |
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744 | (1) |
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An Asymptotic or Large Sample test |
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744 | (1) |
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Breusch-Godfrey (BG) test of High-order autocorrelation |
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745 | (3) |
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748 | (2) |
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XI Model mis-specification versus Pure Autocorrelation |
|
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750 | (2) |
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XII Remedial Measures of Autocorrelation |
|
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752 | (28) |
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Generalized Least Squares (GLS) Procedure |
|
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753 | (3) |
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Rationalization of the transformation procedure |
|
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756 | (9) |
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A priori information about `p' |
|
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765 | (1) |
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Estimation of `p' from Durbin-Watson's `d' statistic |
|
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766 | (1) |
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767 | (1) |
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The Cochrane-Orcutt Iterative Procedure |
|
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767 | (5) |
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Durbin's Two-Step Method of `p' Estimation |
|
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772 | (4) |
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Hildreth-Lu (HILU) Search Procedure |
|
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776 | (2) |
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778 | (2) |
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XIII Autoregressive Conditional Heteroscedasticity (ARCH) and Generalized Autoregressive Conditional Heteroscedasticity (GARCH) Models |
|
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780 | (26) |
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793 | (13) |
|
14 Regression On Dummy Variables |
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806 | (81) |
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|
807 | (1) |
|
Regression by employing a single dummy variable |
|
|
807 | (1) |
|
Regression by employing two dummy variable? |
|
|
807 | (1) |
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|
807 | (1) |
|
Regression by employing one quantitative independent variable and one dummy variable (with two classes) |
|
|
807 | (1) |
|
Regression by employing one quantitative independent variable and two dummy variables (with two classes each) |
|
|
807 | (1) |
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III Interaction effects using Dummy variables |
|
|
808 | (41) |
|
Interaction between Quantitative independent variable and Qualitative independent (dummy) variable |
|
|
808 | (1) |
|
Interaction between two Qualitative independent (dummy) variables |
|
|
808 | (41) |
|
IV Caution in the Use of Dummy Variables |
|
|
849 | (15) |
|
V Testing for Structural Stability of Regression Models - Chow Test |
|
|
864 | (8) |
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VI Testing for Structural Stability of Regression Models by employing Dummy Variables - Use of Dummy Variable Technique Alternative to Chow test |
|
|
872 | (8) |
|
VII Use of dummy variables in seasonal analysis |
|
|
880 | (7) |
References |
|
887 | |