Sunday, January 12, 2020

Regulation of transplant centers and OPO's

I'll be speaking this morning on regulation of transplantation at the 2020 Winter meetings of the American Society of Transplant Surgeons in Miami.

I'll be in a  Special Invited Presidential Session: Transplantation Metrics Roundtable     Moderators:Lloyd Ratner, MD, MPH Timothy Pruett, MD



Transplantation Metrics Roundtable
Time
End Time
Presentation
Speaker
Moderators
10:05 AM
10:20 AM
Welcome and Introduction
Lloyd Ratner, MD, MPH
Lloyd Ratner, MD, MPH
Tim Pruett, MD
10:20 AM
10:35 AM
Introductory Presentation from Dr. Pruett
Tim Pruett, MD
10:35 AM
10:50 AM
Introductory Presentation from Dr. Roth
Al Roth, PhD
10:50 AM
12:00 PM
Transplantation Metrics Roundtable Discussion
All panelists (listed below)

Panel Participants
Paul Conway – Chair of Policy and Global Affairs and Immediate Past President of AAKP
Alexandra Glazier – CEO of New England Donor Services
Rick Hasz, BS, MFS, CPTC – Vice President of Clinical Services for the Gift of Life Donor Program
Maryl Johnson, MD – President of UNOS and Professor of Medicine, Heart Failure & Heart Transplantation at University of Wisconsin
Richard Knight, MBA – President of AAKP
Kevin Longino – CEO of the National Kidney Foundation (NKF)
Jean Moody-Williams, RN, MPP – Deputy Director of the Center for Clinical Standards and Quality at Centers for Medicare and Medicaid Services (CMS)
Ken Moritsugu, MD, MPH, FACPM – Rear Admiral, U.S. Public Health Service (Retired) and Acting Surgeon General of the United States in 2002 and from 2006–2007
Alvin Roth – Professor of Economics at Stanford University and awarded the 2012 Nobel Memorial Prize in Economics


The title of my talk (which Alex Chan and I prepared) is:
Performance Metrics and Regulation of Transplantation

Saturday, January 11, 2020

Kidney exchange, in French, in Forbes

Here's a short interview in French about kidney exchange, in Forbes France:

Alvin Roth, LaurĂ©at Du Prix Nobel D’Economie Veut Revolutionner Les Dons De Reins
Philippe Branche   10 janvier 2020

Here's one bit:

Are you currently working with politicians, legislators or medical administrators to resolve this problem ?
Alvin Roth: I am, but not with great success. I recently spoke to decision makers in several countries: India, China, Germany, Canada and of course the United States. In October, renowned bioethicist Peter Singer expressed strong support for the Global Kidney Exchange Program, so that recently the idea of ​​expanding kidney exchange to include international exchanges has gained momentum. I also recently debated with a member of the Bundestag, the German parliament. In Germany, kidney transplantation from a living donor is legal, but a patient can only receive a kidney from an immediate family member, and therefore the literal interpretation of the law makes it impossible to exchange kidneys. German law provides that monetary exchanges of parts of the human body are illegal and, apparently, it is to avoid any possibility of payment for a kidney that the limitation to family members is applied. A minimal amendment to German law could allow immediate family members to make an indirect donation, via the kidney exchange system, which would preserve the confidence that the donor was not paid to make an exchange. By designing this market in this way, we are trying to expand the database and reduce the waiting time for sick people.

Friday, January 10, 2020

Risk attitudes in transplantation--then and now

Organ transplantation has become much more organized since its early days, for both good and ill.

Today there's a good deal of regulation of transplant centers, which need very high success rates (one year graft survival rates in particular) to remain in the good graces of government and private payers.

It wasn't always so.

Here's a quote from Lloyd Ratner's Message from the ASTS President for November 2019:

"In the transplant world, this [perseverance] is best exemplified by Thomas Starzl’s ceaseless quest to make liver transplantation a reality. Between March 1963 and May 1967, Dr. Starzl performed his first 7 liver transplants at the University of Colorado, all of whom died in the peri-operative period. The longest survivor succumbed after 23 days to “sepsis, bile peritonitis, and liver failure.” Despite this disastrous start, Dr. Starzl persevered. Starzl’s eighth patient, transplanted for hepatocellular carcinoma, lived 400 days before dying from carcinomatosis. By 1990 the programs that Dr. Starzl directed in Pittsburgh would perform 571 liver transplants in a single year and would train many of the world’s leaders in the field."

Thursday, January 9, 2020

Reforming stock exchange governance, from the SEC

It's good to know that sometimes the SEC reads papers by market designers (in this case Budish et al.):

Statement on Reforming Stock Exchange Governance by Commissioner Robert J. Jackson Jr., Jan. 8

"As today’s release explains, America’s stock markets are riven by a fundamental conflict of interest: exchanges both operate public data feeds and profit from selling superior private ones.[1] Because exchanges have no economic reason to produce robust public data on stock prices, investors have long demanded a vote on how the public feeds are run.[2] Rather than give investors a real say over the data that drives our markets, today’s release merely invites for-profit exchanges to draft their own rules on these questions. Because that approach has failed investors before, and there’s no reason to expect it to succeed now, I respectfully dissent.
*          *          *          *
In 1934, American investors struck a fundamental bargain with our stock exchanges. The Commission was created to oversee the markets, and nonprofit exchanges were given the special legal status they needed to play a role in protecting ordinary investors.[3] But over a decade ago the deal changed: Exchanges became for-profit entities with powerful incentives to maximize profits, not protect investors.
That’s how we ended up with the two-tiered system for market data we have today. Congress mandated the creation of a public feed when exchanges were still nonprofits, but today’s for-profit exchanges also sell their own private feeds. So it’s unsurprising that exchanges underinvest in the public feed—it’s a product they directly compete with. The only question is what the Commission should do about it. Rather than recognize the reality of the exchanges’ incentives, the Commission today chooses hope over experience, asking exchanges to act contrary to their own economic interests.[4] For two reasons, we should not expect that approach to produce the robust public data that American investors deserve.
First, by proposing an order under a national market system (NMS) plan, we’re asking the exchanges to tell us how best to address the conflicts of interests that currently allow them to profit by controlling the public feed while selling superior private data.[5] No one should be surprised when the exchanges respond that, rather than give investors votes on the operation of the public feed, they’d rather continue controlling it themselves.[6] Instead of a clear solution to an obvious problem, today’s proposal will produce little more than a long process that will benefit lobbyists and lawyers—but not the ordinary investors living with the tax of rising data costs in our markets.[7]
Second, our history governing markets through NMS plans is hardly encouraging. One need look no further than the consolidated audit trail to see what happens when the Commission replaces real regulation with mere hope that stock exchanges will act against their own interests. The CAT was launched in the wake of a terrifying market event nearly a decade ago. Both Chairman Clayton and Director Redfearn have done tremendous work to move it forward. But our predecessors left the construction of the CAT to the NMS process. And the CAT will protect investors, not produce profits. So it’s no surprise that the CAT is still not complete.[8] I hope our successors won’t someday say the same about today’s attempt to reform exchange governance.
*          *          *          *
Those who, like me, are frustrated by today’s failure to require real reform may be tempted to direct their ire towards our stock exchanges. But it’s a mistake to blame private enterprises for maximizing the profit opportunities the law gives them.[9] Instead, we should change the law to address the incentives produced by giving exchanges both control over our public feeds and the opportunity to profit by selling private ones.[10] Without changing those incentives, we cannot and should not expect the market to fix the market.[11]
That’s why I hope commenters will come forward and urge the Commission to do more than merely hope that stock exchanges will act contrary to their private interests. Until we do, our stock markets will continue to fall short of the level playing field that ordinary American investors deserve."
....
"[11] Important recent research shows that, even when the market for trading is perfectly competitive, exchanges can extract supra-competitive rents from selling speed technology in the form of proprietary data feeds. See Eric Budish, Robin S. Lee & John J. Shim, Will the Market Fix the Market? A Theory of Stock Exchange Competition and Innovation, National Bureau of Economic Research Paper No. w25855 (2019)."

Wednesday, January 8, 2020

Deceased donor organs and nautical miles

UNOS has recently announced a new distribution system for deceased kidney and pancreas offers: instead of being offered first to waiting-list patients at transplant centers in the same one of the 58 Donor Service Areas and then one of the 11 OPTN geographical regions as the donor hospital, they will now be offered first to patients on the waiting lists of transplant centers within 250 nautical miles of the donor hospital.

(Why nautical miles? I don't know, but you can read the various proposals that were considered before deciding on 250 of them at this earlier post: Sunday, May 12, 2019  UNOS proposal for public comment: Eliminate the use of DSAs and regions from kidney and pancreas distribution.)

Here is the new (Dec 5, 2019) announcement: 

"Under the newly approved system, expected to be implemented in 2020, kidney and pancreas offers (except for rare, very well-matched donor and recipient combinations nationwide) will be offered first to candidates listed at transplant hospitals within 250 nautical miles of the donor hospital. Offers not accepted for any of these candidates will then be made for candidates beyond the 250 nautical mile distance.

"Candidates also will receive proximity points based on the distance between their transplant program and the donor hospital. Proximity points are intended to improve the efficiency of organ placement by adding priority for candidates closer to the donor hospital. Candidates within the initial 250 nautical mile radius will receive a maximum of two proximity points, while those outside the initial circle will receive a maximum of four proximity points. The point assignment will be highest for those closest to the donor hospital and will decrease as the distance increases.

"Differences from current system and predicted benefits

"The new system will replace a three-tiered approach used since the beginning of national organ allocation policies in the mid-1980s. Currently, most kidney and pancreas offers go first to candidates listed at hospitals within the same donation service area (DSA) where the donor hospital is located. There are 58 DSAs reflecting the assigned service area of organ procurement organizations (OPOs). These DSAs are fixed, often irregular geographic boundaries, and were not set for the express purpose of optimizing organ allocation. In some instances, portions of the same DSA are not contiguous, meaning that some “local” donor matches may travel through service areas belonging to other OPOs.

"Organ offers not accepted at the DSA level currently are made to candidates at hospitals within the same OPTN region as the donor hospital. Finally, offers not accepted at the DSA or regional level are made to candidates listed at transplant programs anywhere else in the United States.
************
One impetus for the move away from geographic allocation within strict borders is because that system was challenged in the courts, see

Under the new system, arbitrary borders will no longer have such a big effect on access to transplantation. (Except that is for international borders, which are often still insuperable barriers...)

Tuesday, January 7, 2020

Fake rhino horn

When is it ok to fight one repugnant transaction with another?  The New York Times has a story of fighting the (repugnant) sales of rhinoceros  horn by flooding the market with fake rhinoceros horn, i.e. fighting the species-endangering trafficking of rhino horn by selling fakes.  Of course the success of such a strategy for reducing poaching depends on whether fakes are a substitute or a complement for the real thing--e.g. it will fail if the fakes increase the size of the market in ways that increases poaching, rather than satisfying the demand more cheaply (or if fear of convincing fakes reduces demand...)

Scientists Created Fake Rhino Horn. But Should We Use It?
Experts are divided over whether flooding the Asian market with convincing artificial rhino horn would help or hurt rhinos’ survival.  By Rachel Nuwer

"In Africa, 892 rhinos were poached for their horns in 2018, down from a high of 1,349 killed in 2015. The decline in deaths is encouraging, but conservationists agree that poaching still poses a dire threat to Africa’s rhino population, which hovers around 24,500 animals.
Now, in the hopes of driving down the value of rhino horn and reducing poaching even more, scientists have created a convincing artificial rhino horn made from horsehair.
... 
Dr. Vollrath believes his artificial horn could be used to covertly flood the market with a cheap, convincing replacement, reducing the demand that leads to rhinos being slaughtered. He also hopes it might provide an educational tool for “demystifying that rhino horn’s something very special,” he said.
...
"Critics say that fake rhino horn risks stimulating demand for real horn, and that it would complicate policing. “There’s already scarce resources for wildlife crime and we don’t want to make it even more difficult for law enforcement,” said Ms. Swaak-Goldman, who works with governments and law enforcement agencies.
Peter Knights, chief executive officer of WildAid, a nonprofit organization dedicated to ending illegal wildlife trade, added that the market in Vietnam is already flooded with convincing fakes, like water buffalo horn, which accounts for up to 90 percent of what’s sold as rhino horn. “It’s widely known that there is a lot of fake product out there, so this experiment is already running,” Mr. Knights said."
*************
See also

The Economics of Synthetic Rhino Horns

32 Pages Posted: 24 Aug 2016 Last revised: 10 Aug 2017

Frederick Chen

Wake Forest University
Date Written: June 1, 2017

Abstract

To examine the potential impact of synthetic horns to reduce rhino poaching, a formal model of the rhino horn market in which there exist firms with the capability to produce high quality synthetic horns is presented and studied. The analysis shows that whether the availability of synthetic horns would decrease the equilibrium supply of wild horns -- and how much the reduction would be -- depends on market structure -- i.e., how competitive the synthetic horn production sector is -- and on how substitutable the synthetic horns are for wild horns. The implications of these results for conservation policies are derived and discussed. Synthetic horn producers would benefit more by promoting their products as being superior to wild horns, but this could increase horn prices and lead to more rhino poaching. For conservation purposes, it may be beneficial to incentivize firms to produce inferior fakes -- synthetic horns that are engineered to be undesirable in some respect but difficult for buyers to distinguish from wild horns. The analysis also shows that promoting competition in the production of synthetic horns in general is desirable from a conservation standpoint as synthetic horn producers may prefer to keep prices at a high enough level that could still encourage significant amount of poaching.

Monday, January 6, 2020

Social studies of markets, marketplaces, and market design in the journal Economy and Society

Economists aren't the only social scientists who study markets and market-like institutions and organizations, and some of the study of markets by non-economists falls under the loose heading of 'Social studies of markets'.

The Journal Economy and Society  has a special issue on Markets for Collective Concerns and their Failures (Volume 48, 2019 - Issue 2).

The articles in the issue focus both on the social study of markets per se, and on critiquing the way such studies are conducted.

The introductory article, "The organization of markets for collective concerns and their failures," by Christian Frankel, JosĂ© OssandĂ³n & Trine Pallesen, all professors in the Department of Organization at Copenhagen Business School. summarizes the object of study by noting that
"Sociologists of different traditions share the view that part of their task is to provide definitions of markets." (emphasis added).

The concluding article, "On going the market one better: economic market design and the contradictions of building markets for public purposes,"  by Edward Nik-Khah and Philip Mirowski, criticizes social scientists for not taking sufficient account of market design, and criticizes market design for transforming markets from general purpose natural institutions into specialized human artifacts.

I find the level of abstraction in some of this work hard to follow. I guess I take it for granted that different markets are different, and that markets and marketplaces are (and always have been) human artifacts. (I agree though that sometimes other, more abstract simple views have held sway even among economists, and so I also agree that market design can take a bow for at least helping to add some nuance to the view that markets are simply emergent phenomena that arise without human intervention...)

But academic ideas influence popular ideas, and abstract ideas about markets have consequences. To paraphrase Keynes, I think it is sometimes the case that 'Practical men who believe themselves to be quite exempt from any intellectual influence,' are sometimes influenced by ideas about "markets" in the abstract.  So I'll probably continue to try to follow this kind of work, although I'm often disappointed that it doesn't help me to better understand markets and marketplaces and their roles in society.

Here's the table of contents of the special issue.

Article
Pages: 153-174
Published online: 16 Jul 2019
OpenURL Stanford University
  • 564Views
  • 0CrossRef citations
  • 4Altmetric
Article
Pages: 175-196
Published online: 16 Jul 2019
OpenURL Stanford University
  • 346Views
  • 0CrossRef citations
  • 2Altmetric
Article
Pages: 221-242
Published online: 19 Jul 2019
OpenURL Stanford University
  • 243Views
  • 0CrossRef citations
  • 2Altmetric

Sunday, January 5, 2020

ASSA meetings--Sunday market design


Behavioral Market Design
Paper Session
 Sunday, Jan. 5, 2020   1:00 PM - 3:00 PM
 Marriott Marquis San Diego, Point Loma
Hosted By: AMERICAN ECONOMIC ASSOCIATION
Chair: Shengwu Li, Harvard University

Expectations-Based Loss Aversion May Help Explain Seemingly Dominated Choices in Strategy-Proof Mechanisms
Bnaya Dreyfus, Hebrew University of Jerusalem
Ori Heffetz, Cornell University and Hebrew University
Matthew Rabin, Harvard University

Correlation Neglect in Student-To-School Matching
Alex Rees-Jones, University of Pennsylvania
Ran Shorrer, Pennsylvania State University
Chloe Tergiman, Pennsylvania State University

School Choice with Limited Attention
Modibo Sidibe, Duke University
Kehinde Ajayi, World Bank

Obvious Manipulations
Peter Troyan, University of Virginia
Thayer Morrill, North Carolina State University
 View Abstract

Saturday, January 4, 2020

ASSA Market Design on Saturday

Matching under Inequality: Implications for Policy
Paper Session
 Saturday, Jan. 4, 2020   8:00 AM - 10:00 AM (PST)
 Marriott Marquis San Diego, Marriott Grand Ballroom 4
Hosted By: AMERICAN ECONOMIC ASSOCIATION
Chair: Raj Chetty, Harvard University

Trade and Inequality across Local Labor Markets: The Margins of Adjustment
Ryan Kim, Johns Hopkins University
Jonathan Vogel, University of California-Los Angeles

College Admissions at Selective Schools
Raj Chetty, Harvard University
David Deming, Harvard University
John N. Friedman, Brown University

Redistribution in Matching Markets
Mohammad Akbarpour, Stanford University
Piotr Dworczak, Northwestern University
Scott Duke Kominers, Harvard Business School

Capital Mismatch and the Form of Capital Taxation
Ravi Jagadeesan, Harvard Business School

Discussant(s)
Costas Meghir, Yale University
Lawrence Blume, Cornell University
Piotr Dworczak, Northwestern University
*************
Algorithmic Fairness and Bias
Paper Session
 Saturday, Jan. 4, 2020   10:15 AM - 12:15 PM (PST)
 Marriott Marquis San Diego, Marriott Grand Ballroom 1
Hosted By: AMERICAN ECONOMIC ASSOCIATION
Chair: Bo Cowgill, Columbia University

Designing Organizations and Incentives with Human and Artificial Intelligence Agents
Susan Athey, Stanford University
Kevin Bryan, University of Toronto
Joshua Gans, University of Toronto

Biased Programmers? Or Biased Data? A Field Experiment in Operationalizing AI Ethics
Bo Cowgill, Columbia University
Fabrizio Dell'Aqua, Columbia University

Regulating Discrimination in the Presence of Algorithms
Jon Kleinberg, Cornell University
Jens Ludwig, University of Chicago
Sendhil Mullainathan, University of Chicago
Ashesh Rambachan, Harvard University

Algorithmic Risk Assessment in the Hands of Humans
Megan Stevenson, George Mason University
Jennifer Doleac, Texas A&M University

Discussant(s)
Joshua Gans, University of Toronto
Avi Goldfarb, University of Toronto
Jorge GuzmĂ¡n, Columbia University
Shane Greenstein, Harvard Business School

Friday, January 3, 2020

ASSA meetings in San Diego--Market design on Friday

The ASSA meetings are a cornucopia.  Here are some sessions related to market design that caught my eye in the preliminary program for the first day of conferencing, Friday January 3. No one can go to all of them, aside from interviewing junior market candidates, some of these sessions conflict with each other...:-(

Frontiers in Market Design
Paper Session
 Friday, Jan. 3, 2020   8:00 AM - 10:00 AM
 Marriott Marquis San Diego, Catalina
Hosted By: ECONOMETRIC SOCIETY
Chair: Eric Budish, University of Chicago
Targeting In-Kind Transfers through Market Design: A Revealed Preference Analysis of Public Housing Allocation
Daniel Waldinger, New York University

Approximating the Equilibrium Effects of Informed School Choice
Claudia Allende, Columbia University and Princeton University
Francisco Gallego, Pontifical Catholic University of Chile
Christopher Neilson, Princeton University

The Efficiency of A Dynamic Decentralized Two-Sided Matching Market
Tracy Liu, Tsinghua University
Zhixi Wan, Didi Chuxing
Chenyu Yang, University of Rochester

Will the Market Fix the Market? A Theory of Stock Exchange Competition and Innovation
Eric Budish, University of Chicago
Robin Lee, Harvard University
John Shim, University of Chicago

When Do Cardinal Mechanisms Outperform Ordinal Mechanisms?: Operationalizing Pseudomarkets
Hulya Eraslan, Rice University
Jeremy Fox, Rice University
Yinghua He, Rice University
Yakym Pirozhenko, Rice University
*********
Search and Matching in Education Markets
Paper Session
 Friday, Jan. 3, 2020   10:15 AM - 12:15 PM (PST)
 Marriott Marquis San Diego, Rancho Santa Fe 2
Hosted By: AMERICAN ECONOMIC ASSOCIATION
Chair: Eric Budish, University of Chicago

Simultaneous Search: Beyond Independent Successes
Ran Shorrer, Pennsylvania State University

Search Costs, Biased Beliefs and School Choice under Endogenous Consideration Sets
Christopher Neilson, Princeton University
Claudia Allende, Columbia University
Patrick Agte, Princeton University
Adam Kapor, Princeton University

Facilitating Student Information Acquisition in Matching Markets
Nicole Immorlica, Microsoft Research
Jacob Leshno, University of Chicago
Irene Lo, Stanford University
Brendan Lucier, Microsoft Research

Why Are Schools Segregated? Evidence from the Secondary-School Match in Amsterdam
Hessel Oosterbeek, University of Amsterdam
Sandor Sovago, University of Groningen
Bas van der Klaauw, VU University Amsterdam

***********
Market Design
Paper Session
 Friday, Jan. 3, 2020   10:15 AM - 12:15 PM
 Marriott Marquis San Diego, Del Mar
Hosted By: ECONOMETRIC SOCIETY
Chair: Sergei Severinov, University of British Columbia

Market Design and Walrasian Equilibrium
Faruk Gul, Princeton University
Wolfgang Pesendorfer, Princeton University
Mu Zhang, Princeton University

Repeat Applications in College Admissions
Yeon-Koo Che, Columbia University
Jinwoo Kim, Seoul National University
Youngwoo Koh, Hanyang University

Entry-Proofness and Market Breakdown under Adverse Selection
Thomas Mariotti, Toulouse School of Economics

Who Wants to Be an Auctioneer?
Sergei Severinov, University of British Columbia
Gabor Virag, University of Toronto
**********
Transportation Economics
Paper Session
 Friday, Jan. 3, 2020   10:15 AM - 12:15 PM (PST)
 Marriott Marquis San Diego, La Costa
Hosted By: ECONOMETRIC SOCIETY
Chair: Tobias Salz, Massachusetts Institute of Technology

The Selection of Prices and Commissions in a Spatial Model of Ride-Hailing
Cemil Selcuk, Cardiff University

The Welfare Effect of Road Congestion Pricing: Experimental Evidence and Equilibrium Implications
Gabriel Kreindler, University of Chicago

Customer Preference and Station Network in the London Bike Share System
Elena Belavina, Cornell University
Karan Girotra, Cornell University
Pu He, Columbia University
Fanyin Zheng, Columbia University

Platform Design in Ride Hail: An Empirical Investigation
Nicholas Buchholz, Princeton University
Laura Doval, California Institute of Technology
Jakub Kastl, Princeton University
Filip Matejka, Charles University and Academy of Science
Tobias Salz, Massachusetts Institute of Technology
**********

Information (Design), Black Markets, and Congestion
Paper Session
 Friday, Jan. 3, 2020   2:30 PM - 4:30 PM
 Manchester Grand Hyatt San Diego, Torrey Hills AB
Hosted By: ECONOMIC SCIENCE ASSOCIATION
Chair: Dorothea Kuebler, WZB Berlin Social Science Center
An Experimental Study of Matching Markets with Incomplete Information
Marina Agranov, California Institute of Technology
Ahrash Dianat, University of Essex
Larry Samuelson, Yale University
Leeat Yariv, Princeton University

Information Design in Dynamic Contests: An Experimental Study
Yan Chen, University of Michigan
Mohamed Mostagir, University of Michigan
Iman Yeckehzaare, University of Michigan

How to Avoid Black Markets for Appointments with Online Booking Systems
Rustamdjan Hakimov, University of Lausanne
C.-Philipp Heller, NERA Economic Consulting
Dorothea Kuebler, WZB Berlin Social Science Center
Morimitsu Kurino, Keio University

Application Costs and Congestion in Matching Markets
Yinghua He, Rice University
Thierry Magnac, Toulouse School of Economics

Discussant(s)
Christian Basteck, ECARES Brussels
Lionel Page, University of Technology Sydney
Robert Hammond, University of Alabama
Ahrash Dianat, University of Essex
*******

Tech Economics
Paper Session
 Friday, Jan. 3, 2020   2:30 PM - 4:30 PM
 Marriott Marquis San Diego, San Diego Ballroom A
Hosted By: NATIONAL ASSOCIATION FOR BUSINESS ECONOMICS
Chair: Michael Luca, Harvard Business School

GDPR and the Home Bias of Venture Investment
Jian Jia, Illinois Institute of Technology
Ginger Jin, University of Maryland
Liad Wagman, Illinois Institute of Technology

New Goods, Productivity and the Measurement of Inflation: Using Machine Learning to Improve Quality Adjustments
Victor Chernozhukov, Massachusetts Institute of Technology
Patrick Bajari, Amazon

Double Randomized Online Experiments
Guido Imbens, Stanford University
Patrick Bajari, Amazon