https://repositorio.ufba.br/handle/ri/7168 Thu, 14 May 2026 15:14:37 GMT 2026-05-14T15:14:37Z https://repositorio.ufba.br/handle/ri/44298 O nível de eficiência dos hospitais públicos do Estado da Bahia: um estudo através da análise envoltória de dados para os anos de 2017, 2018 e 2019 Barreto, Márcio de Jesus Silva Mendes, Vinícius de Araújo This study evaluates the relative efficiency of public hospitals and maternity units in the state of Bahia, Brazil, between 2017 and 2019, using the Data Envelopment Analysis (DEA) method under the variable returns to scale (VRS) and output-oriented specification. The research uses secondary data extracted from the APURASUS and DATASUS systems, considering inputs related to total costs and installed capacity, and outputs associated with ambulatory care, surgical procedures, hospitalization indicators, and mortality rates. To strengthen the interpretation of results, the units were classified into two analytical clusters based on the median value of the Hospital Admission Authorization (AIH), which serves as a proxy for the complexity of treated cases. The findings indicate substantial heterogeneity in efficiency levels, with hospitals of lower average AIH value systematically operating closer to the efficient frontier. In contrast, high-complexity units exhibited greater variability, lower efficiency scores, and a higher prevalence of decreasing returns to scale. Additionally, the analysis identified a significant potential for cost reduction if all hospitals operated at efficient levels. The study contributes to the understanding of efficiency dynamics within the public health network of Bahia and offers managerial insights for resource allocation, operational improvement, and strategic planning. Limitations and recommendations for further research are also discussed. Universidade Federal da Bahia Trabalho de Conclusão de Curso Mon, 29 Dec 2025 00:00:00 GMT https://repositorio.ufba.br/handle/ri/44298 2025-12-29T00:00:00Z https://repositorio.ufba.br/handle/ri/44251 Utopia pós-capitalista: caminhos rumo à nova sociedade socialista à luz dos entraves austríacos Varjão, João Victor Rodrigues Sampaio, Nuno Jorge Rodrigues Teles Envisioning a post-capitalist utopia, recent contributions from socialist theorists advocate for democratic planning models as a method of coordinating the new society. This study analyzes these proposals in light of the constraints arising from the debate on socialist economic cal culation. In the first phase, the study undertakes a critical approach to misesian and hayekian arguments, exposing their limitations and internal contradictions. Next, the study presents the contemporary models of democratically planned socialist economies and analyzes the alterna tives demonstrated by different planning methods. Finally, the study points to paths that the theoretical development of post-capitalist socialist society should follow. Universidade Federal da Bahia Trabalho de Conclusão de Curso Tue, 06 Jan 2026 00:00:00 GMT https://repositorio.ufba.br/handle/ri/44251 2026-01-06T00:00:00Z https://repositorio.ufba.br/handle/ri/44240 Impactos da política monetária na distribuição de renda: uma análise com dados internacionais em painel Barbosa, Felipe de Souza Tiryaki, Gisele Ferreira In recent decades, an increase in income and wealth inequality has been observed in several countries. Besides compromising the well-being of individuals with lower incomes, increases in income concentration weaken public institutions and democratic governance, compromising a country’s economic performance. Motivated by the absence of consensus in the literature regarding the impact of monetary policy on income inequality, this work estimates static and dynamic panel models with data from several countries between 1990 and 2024, considering the impact of monetary policy effectiveness on inequality. The results indicate that contractionary monetary policies – characterized by the increase in interest rates – are associated with an increase in income inequality. This result suggests that the increase in the cost of credit and economic slowdown tend to disproportionately penalize the income and employment of the poorest workers, while preserving or raising the yields of holders of savings and financial assets. Onthe other hand, inflation volatility presented a negative correlation with inequality, suggesting that price instability may reduce income concentration by eroding the real value of financial assets held by the top of the distribution. The growth of money supply (M2) did not present statistical significance, indicating net distributive neutrality of this aggregate. It is concluded that, although macroeconomic stability is the priority of the monetary authority, fiscal policy must act as a counterbalance mechanism to mitigate the distributive side effects of interest rates. Universidade Federal da Bahia Trabalho de Conclusão de Curso Mon, 22 Dec 2025 00:00:00 GMT https://repositorio.ufba.br/handle/ri/44240 2025-12-22T00:00:00Z https://repositorio.ufba.br/handle/ri/44199 Otimização de carteiras no Brasil: aplicação da teoria moderna de Markowitz à gestão de fortunas em multi family offices e evidências comparativas Rossetto, Bruno Amado Simões Santos, Reinan Ribeiro Sousa This study develops and applies a quantitative portfolio optimization model based on Markowitz’s Modern Portfolio Theory, implemented using the Python programming language. The main objective is to analyze the performance of theoretical portfolios constructed under the mean–variance framework in the context of the Brazilian market, incorporating realistic operational constraints and distinct risk profiles. The methodology relies on daily return series from multiple asset classes, predominantly represented by market indices, characterizing a passive investment approach, with parameter estimation through rolling five-year windows, covariance matrix shrinkage, multiple optimization initializations, and semiannual portfolio rebalancing. Three risk profiles are defined according to annualized volatility bands: Conservative (up to 3.5%), Moderate (3.5% to 5%), and Aggressive (5.5% to 7.5%). Portfolio performance is assessed using standard risk and return metrics, including annualized return, volatility, Sharpe ratio, and maximum drawdown, and is compared with equal-weight portfolios constructed from exclusive wealth management funds in Brazil, grouped by risk profile and performance quartile. The results show that the optimized portfolios achieved Sharpe ratios approximately between 0.6 and 1.1, depending on the risk profile, while the reference portfolios exhibited, on average, lower values. In terms of returns, the optimized portfolios outperformed the equal-weight benchmarks by approximately 0.5% to 7% per year in the conservative and moderate profiles, reaching values close to 10% to 12% per year in the aggressive profile when compared with lower-performing fund quartiles. Conversely, in some cases involving top-performing fund quartiles, the optimized portfolios underperformed; nevertheless, across the full set of comparisons, they outperformed the majority of the reference portfolios. Additionally, the optimized portfolios exhibited a reduction in maximum drawdown of approximately 2 to 10 percentage points, indicating a more favorable risk–return trade-off over the analyzed period. The findings suggest that the proposed model generates portfolios consistent with predefined risk limits and achieves superior risk-adjusted performance relative to most of the benchmarks considered. Keywords: modern portfolio theory; markowitz; portfolio optimization; multi fam Universidade Federal da Bahia Trabalho de Conclusão de Curso Tue, 06 Jan 2026 00:00:00 GMT https://repositorio.ufba.br/handle/ri/44199 2026-01-06T00:00:00Z