Banca de QUALIFICAÇÃO: JOSÉ EDSON ALVES DE LIMA FILHO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE: JOSÉ EDSON ALVES DE LIMA FILHO
DATA : 29/08/2025
LOCAL: ccsa
TÍTULO:

Essays on Technological Change and Firm Dynamics

PALAVRAS-CHAVES:

Essays; Technological; Change; Firm; Dynamics;

PÁGINAS: 66
RESUMO:

his thesis investigates the impact of communication technology diffusion on Brazil’s productive structure, with a dual focus on workers and firms. Across its chapters, the study combines administrative microdata with exogenous measures of technology access, derived from the Irregular Terrain Model (ITM) and mobile network expansion, to estimate causal effects.

Chapter 1 examines the rollout of second-generation (2G) mobile telephony as an exogenous connectivity shock, identifying positive impacts on formal sector wages, with heterogeneous effects by education level, industry, and geographic location.

Chapter 2 analyzes the arrival of high-speed mobile internet (3G/4G) as a skill-biased technological shock, assessing whether enhanced connectivity increases returns to cognitive and non-routine occupations.

Chapter 3 documents a persistent rise in e-commerce activity in Brazil following the COVID-19 pandemic and proposes an empirical strategy to estimate the role of digital infrastructure in firms’ adaptive capacity.

Keywords: Technology diffusion; Mobile internet; Labor market; Firms; Inequality; Difference-in-differences; Brazil.

MEMBROS DA BANCA:
Externa à Instituição - MARCELA MELLO SILVA
Interno - 1037486 - EDILBERTO TIAGO DE ALMEIDA
Interno - 3384435 - FRANCISCO DE LIMA CAVALCANTI
Externa à Instituição - LORENA DE OLIVEIRA FONSÊCA
Interno - 1769063 - MARCELO EDUARDO ALVES DA SILVA
Presidente - 2777451 - RAFAEL DA SILVA VASCONCELOS
Interno - 1121325 - RAUL DA MOTA SILVEIRA NETO