DOCTOR OF PHILOSOPHY
Xin Lin( Award Conferred 20 August 2025)
Title of Thesis:‘ Information Sources, Investor Disagreement, and Asset Pricing.’
This paper conducts two complementary studies to explore the role of information in financial markets. The first study examines information spillovers between news and social media, and shows that stronger social-to-news spillovers predict less stable markets, while news-to-social spillovers show the opposite effect. The second study finds a positive association between investor divergence and stock price jumps, and information asymmetry is more critical to explain this association. Overall, these findings help monitor systemic risk, market instability, and contagion effects, offering valuable insights for policymakers, market participants, and risk managers.
Supervisor: Dr Hasan Fallahgoul External Supervisor: Associate Professor Yan Dolinsky
Nazmul Hasan Muzahid( Award Conferred 22 January 2025)
Title of Thesis:‘ Genomics and Virulence of Acinetobacter baumannii and Acinetobacter colistiniresistens Isolated from Community and Hospital in Segamat, Malaysia: An Epidemiological Study.’
This thesis highlights the possible transmission threat to public health posed by virulent A. baumannii and A. colistiniresistens present in the gut of asymptomatic individuals in the community. The study revealed that community and hospital isolated A. baumannii could be equally virulent, judged by in vitro and in vivo model systems. The presence of highly virulent A. baumannii in community reservoirs poses a significant public health risk and requires additional investigation. Additionally, this thesis provides genomic insights into A. colistiniresistens, a potentially pathogenic bacterium isolated from a community member and notes the public health threat it may pose.
Supervisor: Professor Sadequr Rahman Associate Supervisor: Dr Tan Hock Siew
72 G R A D U A T I O N CEREMONY