講座題目:Systemic Risk of Optioned Portfolio: Controllability and Optimization
講座時間:2022年12月9日(星期五)上午10:00-11:30
講座方式:騰訊會議ID:590-825-291
密碼:221209
講座鏈接:https://meeting.tencent.com/dm/ZXAc15INs3Hg
主講人:
朱書尚,湖南人,本科(1997)和碩士(2000)畢業(yè)于湘潭大學(xué), 2003年畢業(yè)于中國科學(xué)院系統(tǒng)科學(xué)研究所,獲管理學(xué)博士學(xué)位。2003年7月到2012年1月于復(fù)旦大學(xué)管理學(xué)院任教。2012年1月,以“百人計劃”引進人才身份加入中山大學(xué),現(xiàn)任中山大學(xué)管理學(xué)院財務(wù)與投資系教授/博士生導(dǎo)師。多次到香港中文大學(xué)、京都大學(xué)做訪問交流。當(dāng)前研究興趣主要包括投資組合優(yōu)化、Forward-Looking收益預(yù)測、風(fēng)險值優(yōu)化、系統(tǒng)性風(fēng)險傳染機制與測度等。在國內(nèi)外專業(yè)學(xué)術(shù)期刊上發(fā)表論文60余篇,其中包括在Operations Research, INFORMS Journal on Computing, Mathematical Finance, IEEE Transactions on Automatic Control, Journal of Economic Dynamics and Control, Journal of Banking and Finance, Quantitative Finance, Journal of Computational Finance,《管理科學(xué)學(xué)報》和《金融研究》等期刊上發(fā)表的多篇論文?,F(xiàn)任中國運籌學(xué)會理事、中國運籌學(xué)會金融工程與金融風(fēng)險管理分會常務(wù)理事、副理事長;中國系統(tǒng)工程學(xué)會金融系統(tǒng)工程與風(fēng)險管理專業(yè)委員會委員;中國優(yōu)選法統(tǒng)籌法與經(jīng)濟數(shù)學(xué)研究會經(jīng)濟數(shù)學(xué)與管理數(shù)學(xué)分會常務(wù)理事;中國優(yōu)選法統(tǒng)籌法與經(jīng)濟數(shù)學(xué)研究會量化金融與保險分會常務(wù)理事。
講座簡介:
In this work, we investigate the portfolio selection problem against the systemic risk which is measured by CoVaR. We first demonstrate that the systemic risk of a pure stock portfolio cannot be controlled by diversification due to the “contagion effect” and “seesaw effect”. Then, by hedging both the strong correlations between stocks and the extreme losses of distressed stocks with options to alleviate these two effects, we prove that the systemic risk becomes controllable. Next, we show that, the problem can be reformulated as a second-order cone program (SOCP) that allows for efficient computation. Finally, we carry out comprehensive simulations and empirical tests to illustrate the theoretical findings. (This is a joint work with Xiaochuan Pan, Xueting Cui and Jiali Ma)