AIM Institute

The head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for prof. Yanyuan Ma, professor of statistics at Penn State University, at emlyon business school this afternoon. The speaker was invited by prof. Gaetan Bakalli. The topic of presentation was “Robust and Efficient Estimation under Nonignorable Missing Response”. EMLYON professors, Ph.D. students, and postdoc researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about how the semiparametric propensity score model can be applied for practical use when the response variable is nonignorable missing.

Topic: RobustThe head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for prof. Yanyuan Ma, professor of statistics at Penn State University, at emlyon business school this afternoon. The speaker was invited by prof. Gaetan Bakalli. The topic of presentation was “Robust and Efficient Estimation under Nonignorable Missing Response”. EMLYON professors, Ph.D. students, and postdoc researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about how the semiparametric propensity score model can be applied for practical use when the response variable is nonignorable missing.

Topic: Robust and Efficient Estimation under Nonignorable Missing Response
Presenter: Yanyuan Ma
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92544402616
Time: 13h15, April 27th, 2023
Place: Room 235 in building A (Ecully)
Contact: Guillaume Coqueret
and Efficient Estimation under Nonignorable Missing Response
Presenter: Yanyuan Ma
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92544402616
Time: 13h15, April 27th, 2023
Place: Room 235 in building A (Ecully)
Contact: Guillaume Coqueret

QUANT center will organize a seminar this Thursday. Prof. Guillaume Coqueret, will host Yanyuan Ma, professor of statistics at Penn State University, to give a presentation about how to study the estimation problem in a regression setting under nonignorable missing response in the Écully campus of emlyon. Prof. Gaetan Bakalli invited the guest speaker.

Topic: Robust and Efficient Estimation under Nonignorable Missing Response
Presenter: Yanyuan Ma
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92544402616
Time: 13h15, April 27th, 2023
Place: Room 235 in building A (Ecully)
Contact: Guillaume Coqueret

Abstract: We consider the estimation problem in a regression setting where the outcome variable is subject to nonignorable missingness and identifiability is ensured by the shadow variable approach. We propose a versatile estimation procedure where modeling of missingness mechanism is completely bypassed. We show that our estimator is easy to implement and we derive the asymptotic theory of the proposed estimator. We also investigate some alternative estimators under different scenarios. Comprehensive simulation studies are conducted to demonstrate the finite sample performance of the method. We apply the estimator to a children's mental health study to illustrate its usefulness.

The head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for Prof. Alain Bensoussan, Lars Magnus Ericsson Chair Professor of Operations Management and Director, International Center for Decision and Risk Analysis at The University of Texas at Dallas, at emlyon business school this afternoon. The speaker was invited by Prof. Dr. Benoît Chevalier-Roignant. The topic of presentation was “New Mathematical Problems Arising from Management Science”. EMLYON professors, Ph.D. students, and postdoc researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about stochastic control theory from a broad point of view, including optimal stopping problem, option theory, inventory control, risk management, mean field games and applications in management, capital accumulation, and investment and compensation of the CEO.

QUANT center will hold a seminar next Tuesday. Prof. Guillaume Coqueret will host Alain Bensoussan, Lars Magnus Ericsson Chair Professor or Operations Management and Director, International Center for Decision and Risk Analysis at The University of Texas at Dallas, to give a presentation on “New Mathematical Problems of Management Science” in the Écully campus of emlyon. Alain is a frequent co-author of our professor Benoît Chevalier-Roignant.

Topic: New Mathematical Problems arising from Management Science
Presenter: Alain Bensoussan
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/91858671765
Time: 13h15, April 25th, 2023
Place: Learning Lab (Ecully campus, building B, first floor).
Contact: Guillaume Coqueret

Abstract: Over the past 70 years, (stochastic) control theory has played a key role in shaping research in economics and management science. Fields of application have been broad ranging from mathematical finance, inventory management, to capital budgeting. The presentation will provide a broad overview of this approach, including stressing related new applications pertaining to meanfield games, capital accumulation, and dynamic contract theory.

This afternoon, the head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for Prof. Andrianos Tsekrekos, associate professor from Athens University of Economics & Business, at emlyon business school. The speaker was invited by Prof. Dr. Benoît Chevalier-Roignant. The topic of presentation was “Enhancement in Firms’ Information Environment via Options Trading and the Efficiency of Corporate Investment”. EMLYON professors, Ph.D. students, and postdoc researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about the association between firm’s information environment and firm-level investment efficiency and the effect of external monitoring and information-enriching mechanism on this association.

Topic: Enhancement in Firms’ Information Environment via Options Trading and the Efficiency of Corporate Investment
Presenter: Andrianos Tsekrekos
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/95434012268
Time: 13h15, April 6th, 2023
Place: Learning Lab (Ecully campus, building B, first floor).

AIM . QUANT centre has organized several seminars on ESG-relevant topics. Dr. Benoît Chevalier-Roignant hosted the seminar for Prof. Gilles Chemla, professor of Finance at Imperial Business School, on September 22 last year. Gilles made a presentation "Too Much, Too Soon, for Too Long: The Dynamics of " at emlyon. Besides, Guillaume Coqueret, hosted the seminar for Prof. Stéphane Villeneuve, professor from Toulouse School of Economic, to make a presentation about “ with memory and Linear Contracts” on March 9.

AIM . Prof. Guillaume Coqueret was teaching a course, “ : concepts and quant methods”, at emlyon business school from 2022 onwards. This course is split in two parts: one on corporate finance by Jean-Baptiste Vaujour, and one on market finance by Guillaume Coqueret. This course covered the topics such as , , and corporate finance. Guillaume also published a book, which is entitled “Perspectives in ” for a large review on the literature of the smaller topics of ESG and the stock market.

AIM . Prof. Lai-Bennejean was teaching a course, “Sales operation strategy and management”, in the Programme Grande Ecole at the Écully campus. She held one session regarding “Sustainability and Global Account Management” with a guest speaker Rhia from Group in the packaging industry on October 4. This session covered the topics such as ways of creating responsible , aligning on with costumers, long term partnership with the customers, and global key account management in B2B. Mondi has evaluated their sustainability framework and defined a pathway to 2030- Mondi Action Plan 2023 with a focus on , and . As a packaging company, Mondi also has ambitious packaging sustainability commitments on , and and developed - with partnership network for .

Business Review organized a dialogue between professor Yeming (Yale) Gong and Wei Guo, chairman & CEO of Digital China, in . Wei Guo is listed in top 50 influential business leaders in China by . Digital China (16562 million euro revenue in 2021) was a core part of Lenovo Group, a main service provider in digital transformation and computing.

They talked about disruptive technologies such as computing, , 3.0, and their applications in digitalization transformation, with interest in the application of and its relevant techniques. They then discussed the difference in the digital transformation between European and Asian organizations. Next, they discussed the difficulties and challenges that organizations could meet in the digitalization process and the future requirements for organizations. They discussed about how to boost the economy after the -19 pandemic via digital transformation. Finally, they discussed the influence of and cognition to the success of an . The dialogue was hosted by a manager of HBR, and was published on the webpage of Business Review (Chinese version).

About 500 K managers watched the dialogue via different digital media platforms.

Today, a professor from Toulouse School of Economics, Stéphane Villeneuve, was invited by emlyon professor Dr. Benoît Chevalier-Roignant, to make a presentation about “Gaussian Agency problems with memory and Linear Contracts” in the afternoon. His research focuses on stochastic methods in finance and their applications for dynamic contract theory. Prof. Guillaume Coqueret hosted the seminar. emlyon professors, Ph.D. students, and postdoc researchers attended the seminar in both on-site and online formats and communicated with the speaker. Participants discussed about the technical problems and practical applications of one-dimensional and multi-dimensional gaussian agency problems.

Topic: Gaussian Agency problems with memory and Linear Contracts
Presenter: Stéphane Villeneuve
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92409195521
Time: 15h15, March 9, 2023,
Place: Learning Lab, building B, 1st floor

emlyon business school dialogues with industry in . emlyon professor Yeming (Yale) Gong was interviewed by Mecalux Group today to discuss AI applications in warehousing and logistics. Yeming first introduced several technology trends in the warehousing, such as robotics, AI, blockchain, VR/AR, IoT, and automation. They discussed the economic and benefits that AI can bring to warehousing and logistics.

Yeming compared the previous chatbots and ChatGPT in logistics and analyzed how and can reshape the supply chain in customer service, demand forecasting, supply chain optimization, and risk management. They also talked about the future of supply chain with the next generation of AI, supply chain, -enabled supply chain.

They mainly discussed the following questions:

• What technology trends are set to grow in the warehouse?
• Why do businesses need AI in their warehouses?
• What are the most promising applications of AI to improve logistics processes in the warehouse?
• What benefits can AI bring to the human workforce in a warehouse?
• How can robotized systems help improve picking?
• What’s the potential of AI chatbots in logistics?
• How do you envision the future of supply chains with the next generation of artificial intelligence?

QUANT center will organize a seminar next week. Prof. Guillaume Coqueret, will host Stéphane Villeneuve, a professor of applied mathematics from the Toulouse School of Economics, to give a presentation about Gaussian Agency problems. Stéphane Villeneuve is a professor of applied mathematics and former dean of the department of mathematics at University of Toulouse 1 Capitole, where he is affiliated with both Toulouse School of Management and TSE. He is also a member of the TSE-Partnership Foundation (TSE-P) where he coordinates the Chair on Market Risk and Value Creation sponsored by SCOR under the aegis of The Risk Foundation. His research focuses on stochastic methods in finance and their applications for dynamic contracting.

Topic: Gaussian Agency problems with memory and Linear Contracts
Presenter: Stéphane Villeneuve
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92409195521
Time: 15h15, March 9, 2023
Place: learning lab, building B, 1st floor (Ecully campus)
Contact: Guillaume Coqueret

Abstract: Can a principal still offer optimal dynamic contracts that are linear in end-of-period outcomes when the agent controls a process that exhibits memory? We provide a positive answer by considering a general Gaussian setting where the output dynamics are not necessarily semi-martingales or Markov processes. We introduce a rich class of principal-agent models that encompasses dynamic agency models with memory. From the mathematical point of view, we develop a methodology to deal with the possible non-Markovianity and non-semimartingality of the control problem, which can no longer be directly solved by means of the usual Hamilton-Jacobi-Bellman equation. Our main contribution is to show that, for one-dimensional models, this setting always allows for optimal linear contracts in end-of-period observable outcomes with a deterministic optimal level of effort. In higher dimension, we show that linear contracts are still optimal when the effort cost function is radial, and we quantify the gap between linear contracts and optimal contracts for more general quadratic costs of efforts.

Today, a PhD student of Prof. Eric André and Prof. Olivier LE COURTOIS, Silvia FARONI made a presentation about “Home Bias and Learning in a Dynamic Portfolio Choice under Smooth Ambiguity” at emlyon business school in the afternoon. Prof. Guillaume Coqueret, hosted the seminar. emlyon professors, Ph.D. students, and researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about the effect of learning process on market participation and home bias for different investors.

Topic: Home Bias and Learning in a Dynamic Portfolio Choice under Smooth Ambiguity
Presenter: Silvia FARONI
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/92737688909
Time: 13h15, FEB 23, 2023,
Place: A235 (Ecully campus)

The head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for Dr. Olivier Scaillet, a professor of finance and statistics at the Geneva Finance Research Institute of the University of Geneva and head of the Geneva Finance Research Institute, at emlyon business school in the afternoon. The topic of presentation was “Is it Alpha or Beta? A Formal Evaluation of ”. EMLYON professors, Ph.D. students, and researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about whether alpha or beta components of hedge fund returns is better to the company and different hedge fund strategies under various circumstances with the speaker.

Topic: Is it Alpha or Beta? A Formal Evaluation of Hedge Fund Models
Presenter: Olivier Scaillet
Host: Guillaume Coqueret
Zoom: https://em-lyon.zoom.us/j/96174104394
Time: 13h15, February 2nd, 2023
Place: Room 235 in building A (Écully campus)

Last week, emlyon AIM professor Yeming (Yale) Gong was interviewed by the National Business Daily to talk about the and (AIGC).

The journalist first asked about technical problems from GPT2 to GPT3.5. Yeming analyzed the adopted by ChatGPT, particularly the critical tech details in self-attention, in-context learning, and prompt engineering. They discussed whether chatGPT is just an engineering contribution or an innovative scientific contribution.

Second, they discussed problems for some competitors making systems similar to ChatGPT, and analyzed the difficulties in the corpus, algorithms, technical talents, and investment. They discussed problem in the business application of large language models.

Third, Yeming was interviewed about the new paradigm and architecture of (AGI).

Fourth, they discussed about the application of , future trends, business development path, ecosystems, and the possible solution for the content production.

Fifth, AIGC and ChatGPT also raise some ethical issues. Yeming answered relevant Philosophy problems in scientific discovery by humans or AI.

The head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for Dr. Ahmed Nofal at emlyon business school on Jan 12th. The topic of presentation was “The developmental origins of : , and ”. EMLYON professors, Ph.D. students, and postdoc researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants discussed about the theory framework, concepts, dataset and results presented by the speaker.

Topic: The developmental origins of entrepreneurship: Adverse childhood experience, and work satisfaction
Presenter: Ahmed Nofal
Host: Dr Guillaume Coqueret
Time: 13h15, 12 January, 2023
Place: Room 235 in building A (Écully)

Two DBA students, Penny Pan and Monica Wu, made their thesis defense this week. The title of Penny’s thesis is “ considering : Evidence from new retailing industry” and the title of Monica’s paper is “ capability and : Evidence in bank industry”. Emlyon AIM professors Delphine Billouard-Fuentes, Yeming (Yale) Gong, Sailan and an external professor Jie Xiong attended the defense. Delphine Billouard-Fuentes is the chair of Monica’s defense committee.

Emlyon business school is discussing about actively! Emlyon AIM professor Amy Ding was interviewed by Phoenix Media about the ChatGPT. She mentioned the characteristics of different and their impact on the .

strategy flies high with ! A -enabled CSR project by emlyon alumni! A digital collection and associated kit for charity by emlyon students! They are jointly designed by a New Zealand trendy gaming designer and emlyon alumni. "Sky Rainbow" digital CSR project was developed by the global EMBA alumni of Emlyon in 2022. Students and alumni in the global program introduced to make innovation for emlyon CSR strategy. The CSR project is managed and recorded by blockchain to guarantee fairness and transparency. All revenue from NFT digital collection and kit (called little Q) will be donated to the charity, particularly used for addressing education inequality for children in poverty.

emlyon business school is in ! A metaverse forum, “Sail with Digital Intelligence” was jointly organized by emlyon Global EMBA program, North China Alumni Association of emlyon business school, and in Shanghai. Alums in the program built architecture, hardware, and software for the metaverse. Prof. Yeming (Yale) Gong made a virtual presentation to introduce the recent research of AIM Institute in this forum. While the main attendants are EMBA students and alumni, Emlyon professors, PhD, DBA, MSc, BBA students also attended the forum.

The head of QUANT centre, Prof. Guillaume Coqueret, hosted the seminar for Dr. Huihui CHI at emlyon business school on Dec 8th.The topic of her presentation was“ - in the ”. EMLYON professors, Ph.D. students, and researchers attended the seminar and communicated with the speaker in both on-site and online formats. Participants found the conclusions about different competition scenarios in value depreciation market and value appreciation market interesting. Huihui is a post-doc researcher at emlyon and has published papers in journals such as European Journal of Operational Research and Decision Support Systems. Her research interests are IT-enabled operations, sustainability development and supply chain management.

500,000+ managers attended an online Press Release of the rank "2022 Top 100 Smart Manufacturers in China ", presented by Prof. Yeming (Yale) Gong, at “2022 China Digital Annual Conference”, on December 8, jointly organized by emlyon business school, , and jnexpert.com. Emlyon AIM and BIC center have done the research for the rank. National Business Daily, a leading media firm in China, has done promotion and media work for the rank. JN Expert, has organized Press Release and relevant conferences.
Prof. Yeming GONG, at AIM Business Intelligence Center, has studied and released "Top 100 Rank of Smart Manufacturers China " for years, which has been the most influential rank of smart manufacturing in China. This year,
, , , , , , , , , and , top the rank "2022 Top 100 Smart Manufacturers in China ".

Marketers have been shifting away their budgets from to digital alternatives that provide more straightforward scheduling and better targeting features. In response to this trend, the television industry is developing , allowing brands to target households and schedule campaigns seamlessly.
Managers can use to increase their . One way of doing so is by timing the ’s ads relative to that of competitors. AIM Professor Guitart and his coauthors analyze how brands can accomplish this.
The team assessed how the temporal proximity and intensity of advertising around a focal brand’s ad affects its effectiveness. They analyzed data from an online product comparison company that included more than 43,000 brand and 49,000 competitor ads.
They found that ads are the most effective when they air during hours and on television stations with no competitors’ ads. When competitors’ ads air simultaneously, and on the same station, brand ads are most effective when they outnumber competitor ads. If competitor ads outnumber those of the brand, brand ads become ineffective at driving conversions to the website.
The authors show that if the company studied in their paper had followed the two previous high-effectiveness strategies, they could have generated between 55% and 59% more conversions.
Reference:
Ivan Guitart, Guillaume Hervet, and Sarah Gelper (2020). Competitive advertising strategies for programmatic television. Journal of the Academy of Marketing Science, 48(4), 753-775.
DOI: https://doi.org/10.1007/s11747-019-00691-5

AIM Prof. Ajay Kumar was teaching a course, “ ”, on November 30 at the Écully campus. AIM communication team interviewed his students and found that professor Ajay was giving an enjoyable class for the students. Analyzing data with Python is an essential skill for Data Scientists and Data Analysts/Business Analysts. This “Python Data Analysis” course will take students from the basics of data analysis with Python to building and evaluating data models.
After finishing this course, students will learn how to read data from sources like CSVs and SQL, and how to use libraries like, Pandas, Matplotlib, and Seaborn to process and visualize data. Also, student will learn to handle the data pre-processing challenges before building the machine learning models.

Emlyon business school Prof. Yeming (Yale) Gong will host Ms. Shirley Wu, Senior Vice President of Dell Technologies, to give a management practice lecture to emlyon , , , and students, and a seminar to relevant scholars in multiple campuses of emlyon.

Seminar: Management Practice Lecturing
Topic: Innovation with Data
Presenter: Shirley Wu, Dell Technologies
Host: Yeming GONG, emlyon AIM institute, France
Link: https://lnkd.in/eURnD4kt
Time: Dec 13, 2022, 12H15 -13H45 Paris time
Contact: [email protected], Weiwei Zhang, emlyon business school

Ms. Shirley Wu is the Senior Vice President of . As a veteran of over 20 years of experience in the sector, Shirley has an outstanding industry insight and business management track record. Before joining Dell Technologies, she served at Schneider Electric in China as Vice President of Sales and General Manager for Small and Medium Data Center Solutions. She is also a member of 's of China-US Chamber of Commerce, and a feminine superstar in IT industry.

EMLYON Prof. Ivan Guitart was teaching a course, “ Marketing”, on November 22 at the Ecully campus. AIM communication team interviewed his students and found that professor Ivan was giving an interesting class for the students. This course provides an overview of the theories and tools used by digital marketers. After taking this course, the students will learn about improving the experience of users on the website, improving the visibility of the website, using and influencers to attract and engage users and tracking and making decisions based on website and customer analytics. Students have given very positive comments on the teaching of Prof. Ivan Guitart, with an engaging classroom presence, value in real-world learning, exchange of advanced practices in .

How does the classical ownership structure of , involving the possibility to shut down, impact their investment policies? Prof. Benoit Chevalier-Roignant addresses this research question in a recently published co-authored work with Alain Bensoussan and Alejandro Rivera. The authors model a situation in which a site can expand its power generation capacity by an endogenous amount but may also want to shut down to save on fixed operating costs and interest payments if the market prospects deteriorate. They derive managerial implications that help us explain real-world conundrums, illustrating the intricate interactions between the to build up capacity and the to exit an industry. Shutting down may be delayed in the hope of expanding capacity upon recovery; an expansion may also be delayed in the presence of a valuable exit option. The presence of fixed or proportional financing costs may lead the firm to delay its expansion decision, but the scale of investment will only be affected by proportional costs. If causes equipment prices to increase (respectively, decrease) when electricity prices are high (respectively, low), managers should invest earlier (respectively, later) and more (respectively, less) while equipment prices are low (respectively, high). Furthermore, although volume swings (due to capacity decommissionings and expansions) are marked in a homogeneous industry (when the default and expansion thresholds are reached), heterogeneity in the population of wind farms smooths out such effects.
Reference : Alain Bensoussan, Benoît Chevalier-Roignant, Alejandro Rivera. 2022. A model for wind farm management with option interactions. Production and Operations Management.
DOI: doi.org/10.1111/poms.13721

How to adapt traditional models to propose a new modeling approach applicable for innovative and ? Imen BEN MOHAMED and co-authors introduced the -echelon -period capacitated -routing problem (2E-SM-CLRP), a decision problem characterized by a between the and the . Extensive experiments show the value adding of and -period settings on the -echelon -routing and its to adapt its hedging capabilities over time.The results are also congruent with recent findings in -echelon that favor the of and their rather than centralisation-prone practices.

Reference:
Imen BEN MOHAMED. 2022. The two-echelon stochastic multi-period capacitated location-routing problem. European Journal of Operational Research. With W. Klibi, R. Sadykov, H. Şen and F. Vanderbeck.
DOI: https://doi.org/10.1016/j.ejor.2022.07.022

How to adapt traditional models to propose a new modeling approach applicable for innovative and ? Imen BEN MOHAMED and co-authors introduced the -echelon -period capacitated -routing problem (2E-SM-CLRP), a decision problem characterized by a between the and the . Extensive experiments show the value adding of and -period settings on the -echelon -routing and its to adapt its hedging capabilities over time.The results are also congruent with recent findings in -echelon that favor the of and their rather than centralisation-prone practices.

Reference:
Imen BEN MOHAMED. 2022. The two-echelon stochastic multi-period capacitated location-routing problem. European Journal of Operational Research. With W. Klibi, R. Sadykov, H. Şen and F. Vanderbeck.