http://repositorio.ufc.br/handle/riufc/590 Thu, 16 Apr 2026 06:25:52 GMT 2026-04-16T06:25:52Z http://repositorio.ufc.br/handle/riufc/85737 Título: Essays on the public debt in Europe Autor(es): Sampaio Filho, Luiz Almeida Abstract: The literature on European public debt is extensive and controversial. This study has therefore used a systematic approach to overcome the main difficulties in this area. In this way, it aims to answer three main questions. First, whether there is any classification of groups among European countries based on debt behavior, with some core group; if there is such a core group, what can be said about the solvency/sustainability of the debt for the countries in this group; and, whether the greater economic integration among the countries belonging to this core group translates into spillovers of shocks from one to another and, if so, in what magnitude. Cluster techniques were used to answer the first question, making it possible to distinguish three groups with a good level of precision. Next, to detect possible convergence clubs, the convergence testing methodology proposed by Phillips and Sul (2007, 2009) and the algorithms proposed by von Lyncker and Thoennessen (2017) were applied. The results confirm the existence of two debt convergence clubs in the European Union. Taking the intersection of the cluster and convergence results, a sub-sample of twelve countries was defined for which a solvency analysis was applied. To answer the second question, wavelets were used to assess the solvency/sustainability of the public debt of the twelve countries in the sub-sample. The results point to evidence of insolvent behavior in eight of the twelve countries analyzed. To answer the third question, the connectivity spillover approach proposed by Diebold and Yilmaz (2009, 2012, 2014) was applied to a VAR model structure with time-varying parameters (TVP-VAR) according to Antonakakis, Chatziantoniou, and Gabauer (2020). The results show that around 60% of the total connectivity of the network formed by the twelve countries in the sub-sample comes from spillovers, in this case from debt shocks between these countries. Spillovers increase during periods of crisis, especially during the COVID-19 pandemic. The results of this study are useful for evaluating fiscal policy and mapping the transmission of shocks, which makes it possible to adopt preventive actions aimed at reducing the negative impacts of a possible crisis, especially for a region with an unfavorable fiscal history and threatened by recent turbulence such as the European Union. Tipo: Tese Mon, 01 Jan 2024 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/85737 2024-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/83790 Título: Um passo de cada vez: a implementação de um projeto de parentalidade positiva com foco no desenvolvimento de linguagem de crianças entre 0 e 5 anos. Autor(es): Sales, Isabela Braga Tipo: Tese Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/83790 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/83788 Título: Ensaios em saúde mental na perspectiva econômica : um estudo de modelos teóricos e análises empíricas Autor(es): Carvalho, Caroline de Paula Brandão de Abstract: Mental disorders impose significant and growing social and economic costs around the world. Despite this, their investigation by economics researchers is still insufficient. To fill this gap, this thesis, made up of three essays, seeks to investigate mental health from an economic perspective, integrating bibliometric evidence, theoretical foundations and empirical analysis. The first chapter presents an overview of scientific production on the themes of mental health and addiction in the field of economics. A bibliometric review was conducted using data extracted from the Web of Science platform. The investigation included both performance indicators and science mapping. The results indicated that the topic has still received limited attention from economics researchers, which can be attributed, in part, to the fragmented scientific community. The second chapter presents Grossman's (1972) model or health production model, emphasizing the role of schooling; it also presents an extension as proposed by Jacobson (2000), which makes it possible to analyze the production of health by the family nucleus. It is argued that both models can be used to study the demand for mental health. Finally, the third chapter consists of an empirical exercise aimed at investigating the effect of different levels of maternal schooling on the presence and severity of children's depressive symptoms in the Brazilian context. Using data from the 2019 National School Health Survey (PeNSE) and estimating an Ordered Probit model, the results point to a modest and not always positive effect of the mother's schooling on her children's depressive symptoms, which suggests that policies aimed at improving the mental health of adolescents through female schooling may be limited if they are focused exclusively on the number of years of study, to the detriment of the quality of the education received. Thus, the thesis contributes to the literature on mental health economics by combining different methodological approaches to map the state of knowledge, propose a theoretical framework for analysis and offer unprecedented empirical evidence for the Brazilian case. Tipo: Tese Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/83788 2025-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/83607 Título: External sources of transmission of short-run growth shocks in Brazil. Autor(es): Vasconcelos, Kelly Samá Lopes de Abstract: We contribute to the empirical literature on growth transmission channels and shock decomposition, aiming to measure the spillovers of Brazilian growth volatility from commodities, as well as open and domestic macroeconomic variables. We follow Gabauer and Gupta (2018) by using a Time-Varying Parameter Vector Autoregressive approach with dynamic structures to model the conditional connectedness. This technique enables us to measure time-specific external spillover effects that are controlled by variables associated with government fiscal, monetary, credit, and investment policies. Based on our empirical exercise from April 2007 to September 2024, we measure TCI decomposed by group and frequency, and identify which variables are net senders of shocks to growth. We also provide insights into the internal transmission channels. Tipo: Tese Wed, 01 Jan 2025 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/83607 2025-01-01T00:00:00Z