Séminaires de Recherche

Revenue Management in Face of Choice Heterogeneity

Informations Systems and Operations Management

Intervenant : Ali Aouad
PhD candidate at MIT

16 décembre 2016 - Salle Bernard Ramanantsoa - Bâtiment V - De 10h30 à 12h00


Modern-day applications in e-commerce and brick-and-mortar retailing involve complex customer choice behaviors. Modeling this choice heterogeneity strikes a delicate balance between explaining large-scale data and prescribing efficient operational policies. At the strategic level, for the assortment selection problem, we propose a "consider-then-choose" modeling approach, borne out by the marketing literature. Experiments on a large purchase panel dataset demonstrate the strong predictive power of our models against common benchmarks. We develop a dynamic programming framework and show that many empirically vetted assumptions on how customers consider and then choose lead to tractable optimization models. Our algorithm dominates state-of-the-art commercial solvers in several regimes. Further, at the operational level, we study joint assortment and inventory management where customers show a dynamic substitution behavior. We derive the first provably good policies by revealing hidden submodular-like structure. Our approach is an order of magnitude faster than existing heuristics and increases revenue by 6% to 12% in experiments.
This work is based on several papers jointly with Profs. Vivek Farias, Retsef Levi and Danny Segev.

Finance

Intervenant : Stijn Van Nieuwerburgh
NYU - Leonard N. Stern School of Business

15 décembre 2016 - T022 - De 14h00 à 15h15


Routine Regulation: Balancing Contrasting Goals in Organizational Routines

Management et Ressources Humaines

Intervenant : Claus Rerup
Associate professor , Western University, Ivey Business School

9 décembre 2016 - T025 - De 10h00 à 11h30

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Empirical Properties of Inflation Expectations and the Zero Lower Bound

Economie et Sciences de la décision

Intervenant : Mirko WIEDERHOLT
Frankfurt University

8 décembre 2016 - De 13h30 à 14h30

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Survey inflation expectations adjust slowly after shocks and are heterogeneous. The paper
therefore solves a New Keynesian model with dispersed information on the household side. The
information friction changes results regarding shock propagation and policy effectiveness at the
zero lower bound on nominal interest rates. The deflationary spiral in bad states of the world
takes off slowly. Communication about the aggregate state affects consumption (and the sign
of this effect reverses when the zero lower bound binds). Forward guidance and fiscal policy
are less powerful. The effects of dispersed information are larger in states with a smaller prior
probability.

Stratégie et Politique d’Entreprise

Intervenant : Michaël Bikard
LBS

8 décembre 2016 - Salle du Conseil/B.Ramanantsoa - De 10h00 à 11h30


Managerial Role Transitions for Members of HighReliability Occupations

Management et Ressources Humaines

Intervenant : Nishani Siriwardane
Harvard Business School

5 décembre 2016 - T104 - De 09h10 à 10h40

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Internet adoption and knowledge diffusion

Informations Systems and Operations Management

Intervenant : Chris Forman
Professor from Cornell University (the IS department editor of Management Science)

5 décembre 2016 - Salle Bernard Ramanantsoa - Bâtiment V - De 10h30 à 12h00


What is the capacity of ICT to reduce the (geographical and technological) localization of knowledge? In this paper, we analyze the impact of Internet adoption within US firms on knowledge spillovers. More specifically, we investigate the impact of basic Internet access on the likelihood that patents invented at a given R&D establishment cite patents invented elsewhere within the same firm. Our findings suggest that adoption of Internet significantly fosters cross-location citations in a significant way, and that these effects are proportional to the technologically proximity of the establishments. This positive effect holds even when excluding collaborative patents or controlling for earlier collaborations, and suggests that Internet adoption has helped in reducing the spatial localization of knowledge but not in the ability to draw from new knowledge sources (i.e., across different technological areas).

Rich pickings? Risk, Return and Skill in the Portofolio of the Wealthy

Finance

Intervenant : Laurent Bach
Stockholm School of Economics

1 décembre 2016 - T017 - De 14h00 à 15h15


On the Informed Principal Model with Common Values

Economie et Sciences de la décision

Intervenant : Anastosios DOSIS
ESSEC

1 décembre 2016 - T009 - De 13h30 à 14h30

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Diversity Investing

Finance

Intervenant : Oliver Spalt
Tilburg University

24 novembre 2016 - T004 - De 14h00 à 15h15


Based on a sample of more than 70,000 top executives in U.S. firms from 2001 to 2014, we show that top management team diversity – a new text–based measure of how diverse managers are in terms of personal characteristics and prior experiences – matters for stock returns. Diversity investing, i.e., going long firms with diverse management teams and short firms with homogenous teams, yields comparable returns, but higher Sharpe ratios, than most leading asset pricing anomalies over our sample period. Returns are driven by large-cap stocks and the long leg of the strategy.


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