I Econometrics Essays -- 1 About the Contribution of Econometrics to the Advancement of Knowledge: The Macroeconomic Relevance of Microeconomic Data -- 2. Two Aspects of the Methodology of Modeling Deterministic Processes and Evaluation -- 3. An Extension of the Gauss-Markov Theorem for Mixed Linear Regression Models with Non-Stationary Stochastic Parameters -- 4. Computation in Macroeconomic Model-Building: Some Historical Aspects -- 5. Measuring Informativeness of Data by Entropy and Variance -- 6. Significance of the Nonuniqueness of Neoclassical Direct Utility Functions Especially When They are Empirically Confirmed -- II Essays on Income Distribution (Empirical) -- 7 Welfare Disparity Among Subgroups of Population: The Method of Analysis with an Application -- 8. Measuring Welfare Changes and the Excess Burden of Taxation -- 9. Decomposing the Redistributive Effect of Taxes: New Measures of Vertical Equity and Inequity -- 10. Income Transformation and Income Inequality -- 11. A Note on the Gini Measure for Discrete Distributions -- 12. Distributional Preferences and the Extended Gini Measure of Inequality -- 13. On Some Implications of Dagum's Interpretation of the Decomposition of the Gini Index by Population Subgroups -- III Essays on Scientific Methodology -- 14. The End of Science -- 15. Statistical Inference and Inductive Prevision -- 16. The Scientific Training -- IV Essays on Income Distribution (Theory) -- 17. A Family of Multidimensional Poverty Measures -- 18. Independence and Changes in the Size Distribution of Income -- 19. Necessary and Sufficient Conditions for Dominance Using Generalized Lorenz Curves -- V Camilo Dagum. Scientific Publications.