Título :	Essays on financial systemic risk
Autor :	Silva, Walmir Geraldo da
Orientador(es)::	Kimura, Herbert
Assunto::	Risco sistêmico Mercado financeiro Estabilidade financeira
Fecha de publicación :	22-ago-2018
Data de defesa::	5-abr-2018
Citación :	SILVA, Walmir Geraldo da. Essays on financial systemic risk. 2018. 161 f., il. Tese (Doutorado em Administração)—Universidade de Brasília, Brasília, 2018.
Abstract:	This dissertation presented to obtain the Ph.D. degree in Business Administration is composed of two articles. The first one presents an analysis of the literature on systemic financial risk. To that end, we analyze and classify 266 articles that were published no later than September 2016 in the databases Scopus and Web of Knowledge; these articles were identified using the keywords “systemic risk”, “financial stability”,“financial”, “measure”, “indicator”, and “index”. They were evaluated based on 10 categories, namely, type of study, type of approach, object of study, method, spatial scope, temporal scope, context, focus, type of data used, and results. The analysis and classification of this literature made it possible to identify the remaining gaps in the literature on systemic risk; this contributes to a future research agenda on the topic. Moreover, the most influential articles in this field of research and the articles that compose the main stream research on systemic financial risk were identified. In the second article, we model an indicator that aims to identify systemic risk in the financial markets. Using 93 assets from different classes and from both developed and emerging countries, we apply principal components analysis (PCA) to calculate an initial indicator that is then submitted to Markov switching (MS) technique. This procedure advances the use of PCA in systemic risk modelling by preventing the need for arbitrary definitions of normal and stressed regimes. Additionally, applying MS to the indicator extracted by PCA from the correlation matrix of a relevant number of assets of various classes supports the argument that the indicator is indeed systemic. The results show that the probabilities that the indicator is under stress, according to the MS model, can be used as a signal of systemic risk. We also verified that the average risk of assets, calculated by the average value-at-risk (VaR), is affected when the series of these assets are separated in the systemic risk and normal regimes. In addition, we measure the performance of the indicator compared to other metrics built with only an asset class, especially stock indices. The results show that our model adequately depicts periods of high systemic risk, being relatively thorough.
Descripción :	Tese (doutorado)—Universidade de Brasília, Faculdade de Economia, Administração e Contabilidade e Gestão Pública, Programa de Pós-Graduação em Administração, 2018.
Licença::	A concessão da licença deste item refere-se ao termo de autorização impresso assinado pelo autor com as seguintes condições: Na qualidade de titular dos direitos de autor da publicação, autorizo a Universidade de Brasília e o IBICT a disponibilizar por meio dos sites www.bce.unb.br, www.ibict.br, http://hercules.vtls.com/cgi-bin/ndltd/chameleon?lng=pt&skin=ndltd sem ressarcimento dos direitos autorais, de acordo com a Lei nº 9610/98, o texto integral da obra disponibilizada, conforme permissões assinaladas, para fins de leitura, impressão e/ou download, a título de divulgação da produção científica brasileira, a partir desta data.
Agência financiadora:	Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
Aparece en las colecciones:	Teses, dissertações e produtos pós-doutorado

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