Research Seminars

Audit Partner Performance: A Network Perspective

Accounting & Management Control

Speaker: Irem TUNA

12 December 2014 - Room T017 - From 2:00 pm to 4:00 pm

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.


Speaker: Bruno Biais
Toulouse School of Economics

11 December 2014

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

Management & Human Resources

Speaker: Daphnée DEMETRY
Northwestern University - USA

11 December 2014 - T030 - From 2:30 pm to 4:00 pm

Seeking and Avoiding Choice Closure


Speaker: Yangjie GU
Assistant Professor , Tilburg University, The Netherlands

11 December 2014 - Building T, Room 201 (T201) - From 10:30 am to 12:00 pm

Achieving a sense of finality with past decisions, or reaching closure with one’s choices, is generally regarded as beneficial to subjective wellbeing. We instead investigate circumstances under which reaching closure about a choice prevents satisfaction maximization: when post-choice information characterizes a decision outcome as inferior, choice closure inhibits unfavorable comparisons and enhances satisfaction; but when it characterizes this outcome as superior, choice closure inhibits favorable comparisons and fails to enhance satisfaction. Building on research showing that closure can be externally facilitated, we demonstrate that visual cues can trigger a sense of finality. To maximize satisfaction, consumers should seek such triggers when faced with an inferior outcome and avoid them when faced with a superior outcome. However, we show that participants decide to employ or avoid choice-closure triggers in ways that fail to enhance satisfaction, and that nudging them against their default inclinations may be needed in regulating post-choice satisfaction.

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 & Human Resources

Speaker: Zhi LIU
Columbia Business School - USA

10 December 2014 - T04 - From 11:15 am to 12:45 pm

Intertemporal Discounting and Reference Durations


Speaker: Florian STAHL
Professor of Marketing , University of Mannheim, Germany

9 December 2014 - Room T201 - From 2:00 pm to 3:30 pm

Intertemporal Discounting and Reference Durations

by Florian Stahl, Raghuram Iyengar, Yuxin Chen and Andreas Herrmann

Products and services are increasingly offered with contracts of different length. Consumers' choice of a specific contract involves an intertemporal decision, as they have to discount future utility. Given the long duration of some contracts, it is likely that consumers' instantaneous utility for a service is time dependent. We study individuals' discounting behavior allowing for changes in instantaneous utility. We gather experimental data from matching tasks and identify discounting patterns using a latent change-point model. Our results show that models with change-points fit individuals' discounting pattern significantly better than models without. There is also conceptual superiority of including change-points as these are highly correlated with durations that consumers may consider in their decisions (e.g., time till graduation). Interestingly, individuals' discounting pattern is consistent with exponential discounting in the absence of change-points but follows a hyperbolic discounting pattern when allowing consumers' instantaneous utility to change over time. Using a novel monetarily incentivized experimental setting, we show that individuals are not able to discount future outcomes without a bias towards the present even when they have an incentive to do so.


Speaker: Nikolaï Roussanov

4 December 2014


Informations Systems and Operations Management

Speaker: Michael Zhang
Associate Professor , Hong Kong University of Science and Technology

3 December 2014 - HEC Paris - Jouy en Josas Campus - Building S - Room 126 - From 2:00 pm to 3:30 pm

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 & Human Resources

Speaker: Jin Wook CHANG
Carnegie Mellon University - USA

2 December 2014 - T04 - From 9:30 am to 11:00 am

Understanding Employee Compliance and Championing of Organizational Change

Management & Human Resources

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

26 November 2014 - T04 - From 11:10 am to 12:40 pm