2021 Conference on Economic Theory

June 1-2, 2021

Location: Virtual

Organizer: Mira Frick


Tuesday, June 1
11:00am to 11:45am Pietro Ortoleva (Princeton University), “TBD”
Discussant: Ryota Iijima (Yale University)
11:45am to 12:30pm Philipp Sadowski (Duke University), *Todd Sarver (Duke University), “An Evolutionary Perspective on Updating Risk and Ambiguity Preferences”
Discussant: Andrew Ellis (London School of Economics)
12:30pm to 1:00pm Break/Discussion
1:00pm to 1:45pm *Benjamin Brooks (University of Chicago), Songzi Du (University of California, San Diego), “A Strong Minimax Theorem for Informationally-Robust Auction Design”
Discussant: Laura Doval (Columbia University)
1:45pm to 2:30pm *Wojciech Olszewski (Northwestern University), Mikhail Safronov (University of Cambridge), “Efficient dynamic allocations in endowment economies with linear utilities and private information”
Discussant: Erik Madsen (New York University)
2:30pm to 3:00pm Break/Discussion
3:00pm to 3:45pm Doruk Cetemen (Collegio Carlo Alberto), *Chiara Margaria (Boston University), “Exit Dilemma: The Role of Private Learning on Firm Survival”
Discussant: Miaomiao Dong (Pennsylvania State University)
3:45pm to 4:30pm Benjamin Golub (Northwestern University), *Evan Sadler (Columbia University), “Games on Endogenous Networks”
Discussant: Krishna Dasaratha (University of Pennsylvania)
4:30pm to 5:30pm Happy Hour
Wednesday, June 2
11:00am to 11:45am *Gilat Levy (London School of Economics), Ronny Razin (London School of Economics), Alwyn Young (London School of Economics), “Misspecified Politics and the Recurrence of Populism”
Discussant: Kevin He (University of Pennsylvania)
11:45am to 12:30pm *Ignacio Esponda (University of California, Santa Barbara), Demian Pouzo (University of California, Berkeley), Yuichi Yamamoto (Hitotsubashi University), “Asymptotic Behavior of Bayesian Learners with Misspecified Models”
Discussant: Daniel Hauser (Aalto University)
12:30pm to 1:00pm Break/Discussion
1:00pm to 1:45pm Yu Awaya (University of Rochester), *Vijay Krishna (Pennsylvania State University), “Panics and Prices”
Discussant: Elliot Lipnowski (Columbia University)
1:45pm to 2:30pm *Inga Deimen (University of Arizona), Dezsö Szalay (Universität Bonn), “Communication in the Shadow of Catastrophe”
Discussant: Ian Ball (Microsoft Research)
2:30pm to 3:00pm Break/Discussion
3:00pm to 3:45pm *Harry Pei (Northwestern University), “Reputation Building under Observational Learning”
Discussant: Joyee Deb (Yale University)
3:45pm to 4:30pm Xiaosheng Mu (Princeton University), Luciano Pomatto (California Institute of Technology), Philipp Strack (Yale University), *Omer Tamuz (California Institute of Technology), “Monotone Additive Statistics”
Discussant: Weijie Zhong (Stanford University)
4:30pm to 5:30pm Happy Hour


S. Nageeb Ali
(Pennsylvania State University)
Rohit Lamba
(Pennsylvania State University)
Luca Anderlini
(Georgetown University)
Giacomo Lanzani
(Massachusetts Institute of Technology)
Charles Angelucci
(Massachusetts Institute of Technology)
Shengwu Li
(Harvard University)
Dirk Bergemann
(Yale University)
Bart Lipman
(Boston University)
Aislinn Bohren
(University of Pennsylvania)
Erik Madsen
(New York University)
Alessandro Bonatti
(Massachusetts Institute of Technology)
Teddy Mekonnen
(Brown University)
Evangelia Chalioti
(Yale University)
Stephen Morris
(Massachusetts Institute of Technology)
Christopher Chambers
(Georgetown University)
Xiaosheng Mu
(Princeton University)
Yi Chen
(Cornell University)
Wojciech Olszewski
(Northwestern University)
Roberto Corrao
(Massachusetts Institute of Technology)
Juan Ortner
(Boston University)
Krishna Dasaratha
(University of Pennsylvania)
Bobby Pakzad-Hurson
(Brown University)
Geoffroy de Clippel
(Brown University)
Luciano Pomatto
(California Institute of Technology)
Miaomiao Dong
(Pennsylvania State University)
Andrew Postlewaite
(University of Pennsylvania)
Andrew Ellis
(London School of Economics and Political Science)
Indira Puri
(Massachusetts Institute of Technology)
Ignacio Esponda
(University of California, Santa Barbara)
Ronny Razin
(London School of Economics)
Mira Frick
(Yale University)
Luca Rigotti
(University of Pittsburgh)
Drew Fudenberg
(Massachusetts Institute of Technology)
Maher Said
(New York University Stern)
Duarte Goncalves
(Columbia University)
Larry Samuelson
(Yale University)
Jerry Green
(Harvard University)
Eran Shmaya
(State University of New York at Stony Brook)
Nima Haghpanah
(Pennsylvania State University)
Ron Siegel
(Pennsylvania State University)
Marina Halac
(Yale University)
Alex Smolin
(Toulouse School of Economics)
Daniel N. Hauser
(Aalto University)
Omer Tamuz
(California Institute of Technology)
Kevin He
(University of Pennsylvania)
Rui Tang
(Princeton University)
Ryota Iijima
(Yale University)
Utku Unver
(Boston University)
Yuhta Ishii
(Pennsylvania State University)
Alexander Wolitzky
(Massachusetts Institute of Technology)
Ravi Jagadeesan
(Stanford University)
Yuichi Yamamoto
(Hitotsubashi University)
Navin Kartik
(Columbia University)
Jidong Zhou
(Yale University)
Scott Kominers
(Harvard University)
John Zhu
(University of Kansas)

Virtual Chair Frequently Asked Questions

Before joining a Virtual Chair conference session please take note of these recommendations:

  • Use a desktop or laptop computer, not a mobile device such as a phone or tablet
  • Use either Chrome or Firefox browsers to connect to a session
  • Disconnect from VPN before joining a session
  • Download and install Zoom video conference software to view speaker sessions

Joining a Virtual Chair conference session is a two-step process. The first step is to verify your credentials; the second step is to join the Virtual Chair conference venue you are participating in. Follow the steps below to join your Virtual Chair conference session.


  1. An email will be sent to you for the conference session(s) you registered for. Follow the link in the email to access the Virtual Chair session webpage. Click the Join button on the Virtual Chair session webpage.

  2. When you come to the landing page, click the Join link. You will then be prompted to enter your email address; click the Send magic link button (The magic link is a security protocol to verify participants; a new email will be sent to validate your access. Do not close the browser window.

    Note: Do not click the Sign in with Google button - it will not work.


  3. When you receive the new email, click the Sign in to Gather link

  4. A new browser window will open to confirm the sign-in process. Click the Browser button to finish signing in. When you have successfully signed in, close this browser window and go back to the original browser window where you clicked the Join link. 

    Note: You only have to use the magic link the first day of  a multiple-day conference as your credentials will be saved.


  1. After successfully signing in with the Magic Link, proceed back to the original browser window with the Join link. Click the green Enter Space button.
    Enter space button
  2. You will now be prompted to configure your Virtual Chair avatar. It is here that you can also verify that your computer camera and microphone are working. Click the Join the Gathering button to enter the Virtual Chair venue space.
    Virtual Chair avatar settings window
  3. You will then see a tutorial window on how to use Virtual Chair. The tutorial can be bypassed by clicking the Skip Tutorial link in the left-hand toolbar.

Additional information can be found on the Virtual Chair Help Guide page, or in this Virtual Chair Help Guide PDF.

Once you have signed-in to Virtual Chair, use your arrow keys to navigate around the virtual conference space. The following video has more details about using Virtual Chair.

Additional information can be found on the Virtual Chair Help Guide page.

The 2021 Cowles Summer Conferences will be held virtually using the Virtual Chair online platform. A separate invitation will be sent to participants with instructions on how to access the conference session you registered for. This brief overview video explains how to navigate the Virtual Chair space.

A list of frequently asked questions for Virtual Chair guests can be found on this FAQ page. To familiarize yourself with the different features available while attending a Virtual Chair session can be found on the Glossary Page.

Each conference space within Virtual Chair has a presentation area called a Plenary Room which is found at the top of the screen.  Navigate your avatar to the plenary room door to enter the room. To join the Zoom presentation, have your avatar take a seat on a vacant stool and press “X” on your keyboard. At this point you will be presented with a Zoom link on the screen. Clicking the link will automatically launch Zoom on your computer to watch the presentation. Steps below:

  1. Enter the Plenary Room at the top of the screen through either of the doorways.
    Virtual Chair Lobby
  2. After entering the Plenary Room, have your avatar sit on a vacant stool.

    Virtual Chair Plenary Room

  3. At this point, press the “X“ key on your keyboard to join the Zoom session; click the link to launch Zoom.
    Join Zoom
  4. Once the Zoom presentation has finished, click the Leave Meeting button to bring you back to the Virtual Chair session in your browser. Exit the Zoom browser tab if necessary and on the Virtual Chair browser page, click the green Re-enter button to bring you back to the plenary room.


Visit the Virtual Chair help page for additional information on how to connect to Zoom sessions.

Your affiliation will be displayed if another participant clicks on your name. Additionally, you can display your affiliation on your avatar by using the Status field found in your avatar settings (click on your name at the bottom of the screen to display the settings).  To save the status text, click anywhere outside of the settings window. Click image below to view a help video or visit this help page.

You can see all participants who have signed-in to Virtual Chair by clicking the people icon in the toolbar found on the left of the screen.

As with in-person conferences, you can approach anyone in the Virtual Chair venue to interact with colleagues. When you approach another participant, that person’s camera will appear at the top of your screen allowing you to converse. If you would like a more private conversation, you can sit at one of the tables in the lounge area. The number of chairs dictates the number of people who can interact with each other. If there are no empty chairs, no one else can join the conversation. Thus, if you want a one-on-one conversation, sit at a table with only two chairs.

Interacting with others

Seating Options

Private Table for two
Private table for two Table with four chairs Table with eight seats

You can find a schedule of all the presentation on the left sidebar. Click the calendar icon to show upcoming events listed at the top of the sidebar.

If you need assistance navigating Virtual Chair, you can contact a support person in one of the following ways:

Help Desk

In (virtual) Person

  • Walk to a virtual Helpdesk to discuss your question directly. Helpdesks will be located in the lobby

  • Chat one-on-one with a Helpdesk staff member by scrolling through the participant list and clicking on their name, then “message”. You can also search for the Helpdesk staff member using the search bar, found above the list of participants.


Via Email

  • Email the Virtual Chair staff to alert them if you have trouble navigating the event space     on gather.town; they are available at the unique help email found on your event’s  landing page.
  • Or email help@virtualchair.net and put the name of the event you’re attending in the subject line.

In order for Virtual Chair’s Helpdesk team to best assist you, it is recommended that you confirm which browser you are using, and provide either a screenshot or a description of the specific webpage where you encountered an issue. Specific information on troubleshooting audiovisual connection issues is available by clicking here.

Via the Web