Mestrado Profissional em Economia

This thesis consists of two essays examining inflation dynamics through econometric modeling, with distinct analyses of the United States and Brazil, particularly during and after the COVID-19 pandemic. The first essay analyzes inflation dynamics in the United States, benchmarking the Bernanke & Blanchard Structural Vector Autoregression with Exogenous Variables (SVAR-X) models against unrestricted Vector Autoregression (VAR-X) and modified SVAR frameworks. It specifically addresses the structural limitations highlighted by the Bernanke and Blanchard (2023, 2024) model, demonstrating that rigidity in standard model assumptions can obscure critical interactions among wage growth, price inflation, and inflation expectations. The findings indicate significant feedback loops and highlight how structural assumptions impact the perceived role of labor market dynamics, sectoral price shocks, and inflation expectations, especially under the unprecedented disruptions brought by the pandemic. The second essay adapts and expands the modeling approach to Brazil's unique economic conditions, incorporating explicit adjustments for inflation expectations within an inflation-targeting regime. This essay demonstrates how structural factors—such as indexation, policy volatility, and expectation deviations from targets—significantly influence inflation persistence in an emerging market. The empirical results highlight Brazil's greater sensitivity to supply-side shocks and the critical role of wage-setting mechanisms. Methodological refinements, including the explicit modeling of policy credibility and labor market tightness through novel indicators, provide nuanced insights into the limitations of standard developed markets oriented econometric approaches when applied to emerging economies.

Mestrado Profissional em Economia

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