2021 Conference on International Trade

June 7, 2021

Location: Virtual

Organizers: Pol Antras and Guillermo Noguera

Note: The first session will start in Zoom.


Monday, June 7
9:50am to 10:00am
10:00am to 10:20am Keith Head (University of British Columbia), Thierry Mayer (Sciences Po), *Marc Melitz (Harvard University), "Moving Parts: When More Restrictive Content Rules Backfire"
10:20am to 10:40am Costas Arkolakis (Yale University), *Federico Huneeus (Central Bank of Chile), Yuhei Miyauchi (Boston University), "Spatial Production Networks"
10:40am to 11:00am
11:00am to 11:20am Vanessa Alviarez (University of British Columbia), Michele Fioretti (Sciences Po), *Ken Kikkawa (University of British Columbia), Monica Morlacco (University of Southern California), "Two-Sided Market Power in Firm-to-Firm Trade"
11:20am to 11:40am Hanwei Huang (City University of Hong Kong), *Kalina Manova (University College London), Frank Pisch (University of St. Gallen), "Firm Heterogeneity and Imperfect Competition in Global Production Networks"
11:40am to 12:00pm
12:00pm to 12:45pm
12:45pm to 1:00pm
1:00pm to 1:20pm Emmanuel Dhyne (National Bank of Belgium ), Ken Kikkawa (University of British Columbia), Toshiaki Komatsu (University of Chicago), Magne Mogstad (University of Chicago), "Who Benefits from Foreign Demand Shocks?"
1:20pm to 1:40pm Federico Huneeus (Central Bank of Chile), Kory Kroft (University of Toronto), *Kevin Lim (University of Toronto), "Earnings Inequality in Production Networks"
1:40pm to 2:00pm
2:00pm to 2:20pm Michael Sposi (Southern Methodist University), *Kei-Mu Yi (University of Houston), Jing Zhang (Federal Reserve Bank of Chicago), "Trade Integration, Global Value Chains, and Capital Accumulation"
2:20pm to 2:40pm *Johannes Boehm (Sciences Po), Ezra Oberfield (Princeton University), "Growth and the Fragmentation of Production"
2:40pm to 3:00pm
3:00pm to 3:30pm
3:30pm to 3:50pm Fabrizio Leone (Université Libre de Bruxelles), *Rocco Macchiavello (London School of Economics), Josepa Miquel-Florensa (Toulouse School of Economics), Nicola Pavanini (Tilburg University), "Market Structure, Vertical Integration and Farmers Welfare in the Costa Rica Coffee Industry"
3:50pm to 4:10pm Swapnika Rachapalli (University of Toronto), "Learning between Buyers and Sellers along the Global Value Chain"
4:10pm to 4:30pm
4:30pm to 4:50pm Lydia Cox (Harvard University), "The Long-Term Impact of Steel Tariffs on US Manufacturing"
4:50pm to 5:10pm *Sebastian Heise (Federal Reserve Bank of New York), Justin R. Pierce (Federal Reserve Board), Georg Schaur (University of Tennessee - Knoxville), Peter K. Schott (Yale University), "Tariff Rate Uncertainty and the Structure of Supply Chains"
5:10pm to 5:30pm
5:30pm to 6:30pm


Daisuke Adachi
(Yale University)
Toshiaki Komatsu
(University of Chicago)
Rodrigo Adao
(University of Chicago Booth)
Samuel Kortum
(Yale University)
Vanessa Alviarez
(University of British Columbia)
Kala Krishna
(Pennsylvania State University)
Pol Antras
(Harvard University)
Kory Kroft
(University of Toronto)
Costas Arkolakis
(Yale University)
Fabrizio Leone
(Université Libre de Bruxelles)
David Atkin
(Massachusetts Institute of Technology)
Haishi Li
(University of Chicago)
Zack Barnett-Howell
(Yale University)
Wenquan Liang
(Jinan University)
Johannes Boehm
(Sciences Po)
Kevin Lim
(University of Toronto)
Chad Bown
(Peterson Institute for International Economics)
Rocco Macchiavello
(London School of Economics and Political Science)
Charles Cai
(Yale University)
Giovanni Maggi
(Yale University)
Julia Cajal
(Graduate Institute Geneva)
Isabela Manelici
(Princeton University)
Lorenzo Caliendo
(Yale University)
Kalina Manova
(University College London)
Ivy Cao
(Yale University)
Pamela Medina
(University of Toronto)
Ronnie Chatterji
(U.S. Department of Commerce )
Marc Melitz
(Harvard University)
Xiaohong Chen
(Yale University)
Pepita Miquel-Florensa
(Toulouse School of Economics)
Davin Chor
(Dartmouth College)
Yuhei Miyauchi
(Boston University)
Paola Conconi
(Université Libre de Bruxelles)
Monica Morlacco
(University of Southern California)
Lucas Conwell
(Yale University)
Guillermo Noguera
(Yale University)
Lydia Cox
(Harvard University)
Ezra Oberfield
(Princeton University)
Banu Demir
(Bilkent University)
Piyush Panigrahi
(Yale University)
Emmanuel Dhyne
(National Bank of Belgium )
Nicola Pavanini
(Tilburg University)
Jonathan Dingel
(University of Chicago Booth)
Michael Peters
(Yale University)
Dave Donaldson
(Massachusetts Institute of Technology)
Justin Pierce
(Federal Reserve Board)
Jonathan Eaton
(Pennsylvania State University)
Frank Pisch
(University of St. Gallen)
Benjamin Faber
(University of California, Berkeley)
Swapnika Rachapalli
(University of Toronto)
Pablo Fajgelbaum
(Princeton University)
Natalia Ramondo
(Boston University)
Robert Feenstra
(University of California, Davis)
Stephen Redding
(Princeton University)
Ana Cecilia Fieler
(Yale University)
Georg Schaur
(University of Tennessee - Knoxville)
Michele Fioretti
(Sciences Po)
Peter Schott
(Yale University)
Teresa Fort
(Dartmouth College)
Xiangyu Shi
(Yale University)
Juan Gambetta
(Yale University)
Michael Sposi
(Southern Methodist University)
John Geanakoplos
(Yale University)
Meredith Startz
(Dartmouth College)
Andrew Greenland
(Elon University)
Jihoon Sung
(Yale University)
Zijian He
(Yale University)
Heiwai Tang
(HKU Business School)
Keith Head
(University of British Columbia)
Felix Tintelnot
(University of Chicago)
Sebastian Heise
(Federal Reserve Bank of New York)
Daniel Trefler
(University of Toronto)
Elhanan Helpman
(Harvard University)
James Tybout
(Pennsylvania State University)
Hanwei Huang
(City University of Hong Kong)
Diana Van Patten
(Princeton University)
Federico Huneeus
(Central Bank of Chile)
Andrey Varkentin
(Yale University)
Zhen Huo
(Yale University)
Eric Verhoogen
(Columbia University)
Nghiem Huynh
(Yale University)
Trevor Williams
(Yale University)
Amit Khandelwal
(Columbia University)
Woan Foong Wong
(University of Oregon)
Ken Kikkawa
(University of British Columbia)
Wei Xiang
(Yale University)
Dan Kim
(SK hynix)
Daniel Yi Xu
(Duke University)
Kunhyui Kim
(Yale University)
Kei-Mu Yi
(University of Houston)
Al Klevorick
(Yale University)
Jing Zhang
(Federal Reserve Bank of Chicago)

Virtual Chair Frequently Asked Questions

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

    Enter Zoom link

  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.

The following video shows what the attendee will experience joining Zoom from Virtual Chair, and re-entering the Virtual Chair venue once exiting the Zoom session..

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.

If a paper discussion is to take place, the Virtual Chair venue has provided two areas in the main lobby where participants can congregate. The rug areas will be clearly marked with signs. To join the discussion, navigate your avatar onto the  rug where you will hear and see only those other participants in the discussion.

If your avatar is unable to access the rug becuase it is being blocked by another avatar, hold down the G key to move through the other avatars.

 Virtual Chair Lobby for Cowles Conference

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:

  1. An email will be sent to you containing information on how to access 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. Enter the provided password when prompted.
  2. When prompted, enter the password provided in the email.
    Password prompt
  3. You will then be prompted to enter your name and 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
  4. You will enter the venue where you can use your keyboard arrow keys to navigate the space to converse with your colleagues.

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

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