Séminaires de Recherche

Audit Partner Performance: A Network Perspective

Comptabilité et Contrôle de Gestion

Intervenant : Irem TUNA

12 décembre 2014 - Salle T017 - De 14h00 à 16h00

We provide a partner level analysis on the association between the social capital of an audit partner and their audit quality and fees. We use social capital theory and techniques developed in social network analysis to measure the audit partner’s level of connectedness and investigate whether these connections provide information advantages and enhance their social influence. Both of these potential network benefits we argue support the audit partner attributes - personal capabilities and level of independence - necessary to provide high quality audits. Using a sample of French listed firms we construct a network consisting of 4,159 board directors and 734 audit partners, mapping the connections between audit partners and directors, between directors and between audit partners, we find that better-connected (better-networked) audit partners provide higher quality audits and are associated with higher audit fees. The level of an audit partner’s social capital decreases if they have higher levels of tenure and greater levels of economic bonding with their clients.


Intervenant : Bruno Biais
Toulouse School of Economics

11 décembre 2014

Creating Something out of Nothing” : Routines in Episodic Organizations ?

Management et Ressources Humaines

Intervenant : Daphnée DEMETRY
Northwestern University - USA

11 décembre 2014 - T030 - De 14h30 à 16h00

Employees’Reaction to Leader’s Unethical Pro-Organizational Behavior and Their Own Unethical Behavior : The role of Implicit Beliefs of Individual and Group Agency?

Management et Ressources Humaines

Intervenant : Zhi LIU
Columbia Business School - USA

10 décembre 2014 - T04 - De 11h15 à 12h45


Intervenant : Nikolaï Roussanov

4 décembre 2014


Information Systems and Operations Management

Intervenant : Michael Zhang
Professeur Associé , Hong Kong University of Science and Technology

3 décembre 2014 - HEC Paris - Campus Jouy en Josas - Bâtiment S - Salle 126 - De 14h00 à 15h30

We investigate social influence between online friends in online book ratings with rating and social-network data from a popular online rating website in China. Our methodology exploits the dynamic feature of online social networks and offers a unique method for identifying the presence of social influence while accounting for rater similarity in online book ratings. On average, rating similarity between friends is about 1.9 times higher with social influence. We further discuss the impacts of user-­ and book-characteristics on the focal users’ susceptibility to social influence from their online friends. We find that social influence is stronger for older and more popular books and for users who have smaller online social networks. Underscoring an important feature of social media, we also find that more recent friends’ ratings have more significant influence.

Bio: Professor Michael Zhang is an Associate Professor of Information Systems, Business Statistics and Operations Management at the Hong Kong University of Science and Technology, and an affiliated faculty at MIT Center for Digital Business. He holds a PhD in Management from MIT Sloan School of Management, an MSc in Management, a BE in Computer Science and a BA in English from Tsinghua University. Before joining the academia, he worked as an analyst for an investment bank, and as an international marketing manager for a high-­tech company. He holds a US patent, and started a social network company. Professor Zhang’s research interests are on issues related to creation, dissemination and processing of information in business and management contexts. His works study pricing of information goods, online word-­of-mouth, online advertising, incentives of creation
in open source and open content projects, and use of information in financial markets. His research has appeared in American Economic Review (AER), Management Science, Journal of Marketing (JM), MIS Quarterly (MISQ), Information Systems Research (ISR), Journal of MIS (JMIS), Decision Support Systems (DSS), and Journal of Interactive Marketing. He has also been actively involved in professional services, including serving as an Associate Editor for Information Systems Research (ISR), a Guest Associate Editor for MIS Quarterly, and a member of the editorial boards of Production and Operations Management (POM) and Electronic Commerce Research and Applications.

Status maintenance in high-status groups : Implications of intergroup status for intragroup behavior

Management et Ressources Humaines

Intervenant : Jin Wook CHANG
Carnegie Mellon University - USA

2 décembre 2014 - T04 - De 09h30 à 11h00

Understanding Employee Compliance and Championing of Organizational Change

Management et Ressources Humaines

Intervenant : Mel FUGATE
Cox School of Business at Southern Methodist University - Dallas - USA

26 novembre 2014 - T04 - De 11h10 à 12h40

The Higher Moments of Future Earnings

Comptabilité et Contrôle de Gestion

Intervenant : Woo-Jin CHANG

21 novembre 2014 - Salle T017 - De 14h00 à 16h00

We use quantile regressions to evaluate the higher moments of future earnings. First, we evaluate the in-sample relations between current firm-level attributes and the moments of lead return on equity, ROE. We show that: (1) as current ROE increases lead ROE tends to increase, become more disperse, and more leptokurtic; (2) loss firms tend to have lower, more disperse, and more left-skewed lead ROE; (3) as accruals increase lead ROE tends to decrease and become more disperse; and, (4) firms with higher leverage and/or lower payout ratios tend to have greater dispersion in lead ROE. Second, we show that the in-sample relations generate reliable out-of- sample estimates of the standard deviation, skewness, and kurtosis of lead ROE. Moreover, when compared to estimates obtained via alternative approaches, our out-of-sample estimates: always contain incremental information content and are typically more reliable. Finally, we evaluate the relation between higher moments and market-based variables. These analyses demonstrate that equity prices are increasing in the variance and skewness of lead ROE but decreasing in the kurtosis of lead ROE. Credit spreads are increasing in the variance and kurtosis of lead return on assets, ROA, and decreasing in the skewness of lead ROA.


Intervenant : Francesco Franzoni
Swiss Finance Institute

20 novembre 2014