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16 results on '"Ogawa, Marina"'

3. Secreted Frizzled-Related Protein 1 Promotes Odontoblastic Differentiation and Reparative Dentin Formation in Dental Pulp Cells

Author

Ipposhi, Keita, primary, Tomokiyo, Atsushi, additional, Ono, Taiga, additional, Yamashita, Kozue, additional, Alhasan, Muhammad Anas, additional, Hasegawa, Daigaku, additional, Hamano, Sayuri, additional, Yoshida, Shinichiro, additional, Sugii, Hideki, additional, Itoyama, Tomohiro, additional, Ogawa, Marina, additional, and Maeda, Hidefumi, additional

Published
2021
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5. Macrophages fine-tune pupil shape during development

Author

Takahashi, Moe, primary, Misaki, Mika, additional, Shibata, Shinsuke, additional, Iga, Takahito, additional, Shindo, Tomoko, additional, Tai-Nagara, Ikue, additional, Hirata, Ayako, additional, Ogawa, Marina, additional, Miyamoto, Takeshi, additional, Nakagawa, Taneaki, additional, Ema, Masatsugu, additional, Ichiyama, Yusuke, additional, Shima, David T., additional, Hozumi, Katsuto, additional, Nishimura, Satoshi, additional, and Kubota, Yoshiaki, additional

Published
2020
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6. Value-at-Risk (VaR) Real brasileiro e moedas de mercados emergentes e em desenvolvimento

Author

Ogawa, Marina Andreotti, Costa, Naijela Janaina da, and Moralles, Herick Fernando

Subjects
Risk Management, Países desenvolvidos e emergentes, Value-at-Risk, Exchange rate, Developing and emerging countries, Taxa de câmbio
Abstract

Resumo A globalização tem sido responsável pela elevação da exposição de empresas e países a riscos relativos a fatores cambiais. A literatura tem abordado a questão da volatilidade da moeda em países emergentes e desenvolvidos sem um consenso sobre tal dinâmica, bem como são escassos os estudos que estimam e situam o risco do real brasileiro. Dessa forma, o presente estudo teve por objetivo mensurar o risco da taxa de câmbio brasileira, bem como testar a hipótese de que existe uma diferença significante na volatilidade entre moedas de países emergentes e em desenvolvimento. Por meio do VaR paramétrico ajustado para distribuições de valores extremos, observou-se que o real brasileiro apresentou taxa de câmbio de maior risco. Os resultados também revelam que os pressupostos distribucionais não parecem apresentar nenhum padrão específico quando confrontados países emergentes e desenvolvidos, e também que países emergentes apresentaram menor volatilidade, denotando a preponderância de fatores externos ao mercado cambial na determinação do risco de algumas moedas. Abstract Globalization has been responsible for increasing exposure to risks related to currency factors for companies and countries. The literature has addressed the issue of currency volatility in emerging and developed countries without a consensus on such a dynamic and there are few studies that estimate and place the risk of the Brazilian real. Thus, this study aimed to measure the risk of the Brazilian exchange rate, as well as test the hypothesis that there is a significant difference in volatility between currencies of emerging and developing countries. Through the parametric VaR set to extreme values distributions, it was observed that the Brazilian real presented at greater risk of exchange rate. The results also showed that the distributional assumptions do not seem to have any specific pattern when faced emerging and developed countries and also emerging countries showed less volatility, reflecting the preponderance of factors external to the foreign exchange market in determining the risk of some currencies.

Published
2018

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