Analyzed Variance and Comovements in Economic Data

📅 2023-10-25 — Session: Analyzed Variance and Comovements in Economic Data

🕒 00:35–22:44
🏷️ Labels: Variance, Comovements, Pandas, Econometrics, Data Analysis
📂 Project: Dev
⭐ Priority: MEDIUM

Session Goal

The session aimed to explore and analyze the variance of firm-level shocks and their transformations, focusing on the impact of comovements and nonlinear transformations on aggregated measures.

Key Activities

• Converted ‘agrupacion_id’ to zero-filled strings in Pandas, ensuring proper handling of NaN values.
• Resolved a type conversion error in a Python function by modifying the harmonize_agrupacion_id function.
• Conducted a statistical analysis of variance in firm-level shocks, examining the implications of log-normal and log-Laplace distributions.
• Developed a method for extending covariance analysis for shock transformations, focusing on relationships between variances and covariances.
• Analyzed the nonlinear impact on variance, detailing expectations on function behavior and approaches for empirical analysis.
• Investigated the influence of comovements on variance in aggregated measures, discussing deviations from the law of large numbers.
• Created a LaTeX template for econometric papers on comovements and variance.
• Revised plot captions to better illustrate linear relationships in complex systems.

Achievements

• Successfully implemented data cleaning techniques in Pandas.
• Clarified the role of comovements and nonlinear transformations in variance analysis.
• Provided a foundational framework for future research on variance and comovements in economic data.

Pending Tasks

• Further exploration of the scaling exponent’s role in variance decay with population size.
• Additional empirical analysis to validate theoretical findings on comovements and variance.
• Completion of the econometric paper using the LaTeX template.