Researchers in NUS Business School are experts in their individual areas and their work appear regularly in leading and prestigious publications. Below is a selection of research highlights
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Assoc. Professor 
Chung Chi-Nien
Portfolios of Political Ties and Business Group Strategy in Emerging Economies: Evidence from Taiwan
Chung Chi-Nien, Hongjin Zhu

Abstract
This study examines how political ties with rival political parties can affect a firm's strategic decisions. Focusing on a firm's portfolio of ties in addition to dyadic ties, we offer a novel contingency model that specifies how the influence of political ties on strategy varies across different forms of government in democratic emerging economies. We propose that when political parties differ substantially in competitive status (i.e., under united government), a diverse portfolio could induce the dominant political party to use punitive tactics toward the focal firm and make it difficult to achieve strategic goals. However, when political parties have a similar competitive status (i.e., under divided government), a diverse portfolio could benefit the firm by producing tertius gaudens advantages and political flexibility. Such a portfolio effect of political ties tends to be mitigated by the firm's internal resources and capabilities. An investigation of how the political ties maintained by Taiwanese business groups affected unrelated diversification from 1998 through 2006 offers an initial attempt to reveal the role of ties to competing political parties in shaping firm strategy and highlights the trade-offs that politically connected firms confront when they exploit opportunities and mitigate risks arising from underdeveloped political and market institutions.
 
  

Asst. Professor
Huang Jiekun
Gender and Corporate Finance: Are Male Executives Overconfident Relative to Female Executives? 
Huang, Jiekun and Kisgen, Darren J.

Abstract
We examine corporate financial and investment decisions made by female executives compared to male executives. Male executives undertake more acquisitions and issue debt more often than female executives. Further, acquisitions made by firms with male executives have announcement returns approximately 2% lower than those made by female executive firms, and debt issues also have lower announcement returns for firms with male executives. Female executives place wider bounds on earnings estimates and are more likely to exercise stock options early. This evidence suggests men exhibit relative overconfidence in significant corporate decision-making compared to women.
 
 

Professor
Ruth Aguilera
Corporate Governance and Investors' Perceptions of Foreign IPO Value: An Institutional Perspective  
R.Greg Bell, Igor Filatotchev, Ruth V. Aguilera

Abstract
This article investigates stock market responses to different constellations of firm-level corporate governance mechanisms by focusing on foreign initial public offerings (IPOs) in the United States. We build on sociology-grounded research on financial market behavior and use a "nested" legitimacy framework to explore US investor perceptions of foreign IPO value. Using a fuzzy set theoretic methodology, we demonstrate how different combinations of monitoring and incentive-based corporate governance mechanisms lead to the same level of investor valuation of firms. Moreover, institutional factors related to the strength of minority shareholder protection in a foreign IPO's home country represent a boundary condition that affects the number of governance mechanisms required to achieve high value perceptions among US investors. Our findings contribute to the sociological perspective on comparative corporate governance and the dependencies between organizations and institutions.

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