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Rajna Gibson Brandon
SFI Senior Chair
Professor of Finance
Rajna Gibson Brandon is Full Professor of Finance at the University of Geneva and Managing Director of the Geneva Finance Research Institute. She joined SFI in 2006, has held an SFI Senior Chair since 2007, and was SFI Head of Research from 2007 to 2014. Prof. Gibson Brandon has been a member of the board of directors of Swiss Re since 2000. From 1997 to 2004 she was a member of the Swiss Banking Commission and from 2012 to 2015 she was a member of the board of directors of Banque Privée Edmond de Rothschild.
Research Interests:
Her research areas include asset pricing, experimental finance, corporate governance, and risk management.
Recent Research:
In a recent study, Prof. Gibson Brandon and her co-authors investigate the impact of irrational language in media news coverage of stock returns. Empirical analysis is conducted using, on the one hand, a market irrationality sentiment measurement based on text data from the Dow Jones Newswire, and on the other hand, S&P 500 and DJIA listed company prices from 1998 to 2012. The researchers find evidence that an increase in the market irrationality sentiment measurement decreases subsequent stock market returns and increases stock market volatility. The impacts are large: a one-standard-deviation increase in market irrationality sentiment can make the S&P 500 and DJIA drop by up to 4.8 bps and 3.4 bps, respectively.