Tim Bresnahan @timobres Twitter profile

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Tim Bresnahan

@timobres

2 years

I am profoundly saddened to learn that many of our Economics colleagues are the victims of sexual harassment. Possibly there are multiple women who are victims of the same men, senior figures in the profession. This is unacceptable.

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Tim Bresnahan

@timobres

2 years

I report, with great sadness, the passing of Paul David. A fabulous scholar of economic history and the economics of technology, he lit up Stanford for six decades.

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Tim Bresnahan

@timobres

2 years

Aviv Nevo, a terrific competition economist, has been named head of the @FTC FTC's Bureau of Economics. 1/3

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Tim Bresnahan

@timobres

2 years

We economists owe gratitude to @jenniferdoleac and others for centering the issue of sexual abuse in our profession. The recent allegations are very grave. Enquiry needed.

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Tim Bresnahan

@timobres

2 years

Errors in three management areas. 1) Taking a firm private can reduce short-termism (e.g. Porter, 1992). Taking a firm private with a capital structure that compels short-termism, no. It might force you to make panicky cost-cutting choices.

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Tim Bresnahan

@timobres

2 years

Ed Prescott, a fabulous macroeconomist, wrote an oligopoly model with Mike Visscher. First game theory IO competition model used empirically. RIP Ed, and thanks.

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Tim Bresnahan

@timobres

1 year

Just attended the talk by Ederer et al. on toxic speech in EJMR at the NBER summer institute. @florianederer @paulgp with discussion from @ce_tucker . Heartbreaking. EJMR toxicity violates any standard of human decency or basic commitment to open science. MUST FIX THIS. /1

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Tim Bresnahan

@timobres

2 years

Some journalists and pundits got yesterday's antitrust court ruling in the merger of Penguin (etc.) and Simon and Schuster pretty wrong. I add here a simple "what actually happened" thread.

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Tim Bresnahan

@timobres

2 years

Mourning Paul David, great economic historian and technology scholar. Here is the WSJ obit:

Economist Paul A. David Looked Back to See Forward

The Stanford economic historian, who has died at age 87, explained why firms can be slow to take full advantage of new technologies.

www.wsj.com

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Tim Bresnahan

@timobres

1 year

I have a task for a Cornell senior person. Dean of the B-School, Football Coach, somebody known to students. (The Pres. did her bit yesterday.) You have a crisis of antisemitic hate and threats of violence. So here's the plan, which takes courage and leadership: /1

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Tim Bresnahan

@timobres

1 year

Joe Dimaggio came to Princeton to shoot a Mr. Coffee commercial back when I was a grad student. They got the University to open an Econ Dept office window, unplug everything inside. For lights Whose? that faculty most frequently in her office and working. Easy guess, right? /1

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Tim Bresnahan

@timobres

2 years

3) A platform can only have one reputation (Bresnahan et al. 2012). Trying to be "free speech" to wingnuts and "safe" to advertisers, no. The former spook the latter. The louder you are, the more your platform's multiple constituencies are in the same information space.

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Tim Bresnahan

@timobres

2 years

2) Basic platform economics (e.g. Rosse 1970) tells you whom to pay and who shoul pay you. Fees to those who bring others to your platform, no. They might leave, at which point positive feedback is not your friend.

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Tim Bresnahan

@timobres

2 years

Much discussion of a Court's decision not to grant a Preliminary Injunction to the FTC in the Meta - Within merger. I have no inside info, but 1) There is nothing novel in the Court's opinion. 2) I have a very different take on what role Economics might have played here. 1/7

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Tim Bresnahan

@timobres

2 years

Stanford Obituary for Paul David: We miss, as it says, his energy, his ideas, his companionship and his voice.

Professor Paul David died at the age of 87 | Department of Economics

Paul Allan David died on January 23, 2023, at his home in Palo Alto, at the age of 87.

economics.stanford.edu

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Tim Bresnahan

@timobres

1 year

New perspective from today's NYT. What has harmed "her field of study" is not the scientific fraud, but the efforts to correct it. /1

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Tim Bresnahan

@timobres

2 years

I am extremely impressed with the bravery of women who have written variants of "he did this to me too" this week. Also very impressed with the efforts of @jenniferdoleac to ally with survivors. Are there other powerful effective allies? I want to amplify these voices.

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Tim Bresnahan

@timobres

2 years

To me, this is an open science issue. When people are harassed, they are excluded. We have to fix this.

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Tim Bresnahan

@timobres

2 years

Competition with network effects: the platform with installed base prefers to block interoperability, the fledgling platform prefers to create it. Application to twitter's and rivals' policies today, obvious ....

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Tim Bresnahan

@timobres

2 years

What can we do to improve this? Some things are obvious. Those of us who are senior and established can speak up in support. We can take some of the heat from the trolls who will accuse survivors and their allies of accusing in bad faith, too.

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Tim Bresnahan

@timobres

1 year

Twitter brings many foolish defenses of toxic speech on EJMR since @florianederer @paulgp and @DataKyle 's useful paper about racist, sexist, rape-threatening, (other) violence-threatening and many more toxic, harmful to economists, posts. /1

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Tim Bresnahan

@timobres

2 years

It appears that there may be a substantial number of (typically junior) women with complaints about the same (typically senior) men. The power imbalances inherent in academic life make it difficult for one person to complain, either to officials at their university or publicly.

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Tim Bresnahan

@timobres

1 year

@kearney_melissa A few regrade requests are reasonable. Most are expressions of entitlement. The latter are bad for faculty and awful for parafaculty. Need to filter.

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Tim Bresnahan

@timobres

2 years

There are other resources. Both the NBER and the AEA have ombuds who can receive and aggregate anonymous complaints. See https://www-aeaweb-org/about-aea/aea-ombudsperson/faq and https://www-nber-org/about-nber/standards-conduct

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Tim Bresnahan

@timobres

2 years

Ohh, and the most important thing. Aviv Nevo is not afraid of antitrust enforcement action and he is very analytically demanding. We could get some good cases from @FTC . 4/3

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Tim Bresnahan

@timobres

1 year

The NYTimes has an impressively bad hatchet-job obit of Bob Lucas, who was a terrific economic scientist, not a political hack. @1954swilliamson suggests they could have interviewed someone who knew Bob. OR, ...

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Tim Bresnahan

@timobres

2 years

Which is likely how the FTC's unwise habit of not listening to its own Economists bit it on the butt. 7/7

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Tim Bresnahan

@timobres

1 year

Why say the problem is @DataColada finding errors in the research, and not that there were errors in the research? NYT journalists lean to reporting spin, e.g. negative headlines "harm ... her field of study." Science and spin are not friends. /2 of 2

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Tim Bresnahan

@timobres

2 years

This is _not_ an abandonment of the oddly named "consumer welfare standard" because it is the authors not the readers of books who were harmed. That standard includes monopsony power cases like this one.

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Tim Bresnahan

@timobres

2 years

No, I am not going to link to the weak journalists and pundits. Feels too much like kicking kittens.

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Tim Bresnahan

@timobres

2 years

@emptywheel @Brandi_Buchman Glad to be a regular reader of both @emptywheel and @Brandi_Buchman and glad you are doing this. Coverage of the Jan6 trials is a big deal.

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Tim Bresnahan

@timobres

2 years

Other things are less obvious. The constraints are real -- academics is full of power imbalances, and University (and probably govt. and other research shop) administrations are ineffective at prevention and protection.

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Tim Bresnahan

@timobres

2 years

AEA has responded to the economics metoo moment. Thanks @jenniferdoleac for building the momentum toward a better profession.

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Tim Bresnahan

@timobres

11 months

Have been trying the other site for a while. Easy to block trolls, so not many trolls. Not enough econs have moved, so get on with it, laggards.

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Tim Bresnahan

@timobres

1 year

Embedded everywhere in the system.

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Tim Bresnahan

@timobres

1 year

I congratulated both @EU_Competition and @ProfFionasm on her appointment. Stand by that. Now there is all this nonsense mischaracterizing her antitrust experience and approach while weirdly throwing the transnational EU project under the bus. Nonsense.

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Tim Bresnahan

@timobres

2 years

With two goals, neither of which is to defend the current state of our profession, this thread discusses some of the existing structures for getting relief.

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Tim Bresnahan

@timobres

2 years

Anonymous ombuds can be powerful. If you have been victimized by some creep, they can take your info -- anonymously -- and take action if and when there are multiple complaints. etc.

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Tim Bresnahan

@timobres

1 year

I am admiring of @PikaGoldin for wisdom, focus, brilliance, and most of all persistence and courage. Heroines don't just do terrific research, they (still) fight for basic research resources. We benefit. /n

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Tim Bresnahan

@timobres

2 years

Thus it is not an ideological breakthrough for USDOJ Antitrust. It is a well-litigated routine merger case. Respondents really hoped the Court would be confused about monoposony, but, like most reasonably smart people, not confused.

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Tim Bresnahan

@timobres

2 years

If your harasser is an NBER affiliate or presents papers or discusses at conferences of either organization, consider these routes. If the harassment occurs at conferences or is linked to co-authorship, all the more so.

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Tim Bresnahan

@timobres

1 year

Congratulations, EU and @ProfFionasm

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Tim Bresnahan

@timobres

1 year

Super useful thread from @conlon_chris on _actual_allegations in FTC/Amazon. Reveals, if doesn't say, that 90% of tweets and reporting about the case are nonsense.

Chris Conlon

@conlon_chris

1 year

#econtwitter should take a look at the (heavily redacted) @FTC Amazon complaint that came out recently. Given past experience, this case will likely not be resolved for 3-20 years. Not everything is visible -- but I'll give my best guesses below.. 1/

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Tim Bresnahan

@timobres

2 years

Economists see any contradictions between elements of a case much more quickly than attorneys. We have different definitions of analytic, in my considerable experience. The narrow market definition and the potential entrant arguments tripped over each other. Boom. 6/7

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Tim Bresnahan

@timobres

2 years

With leadership like that of Aviv Nevo, the abandonment of Economics by the @FTC leadership and the morale crash among FTC staffers may end. 3/3

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Tim Bresnahan

@timobres

2 years

Why those two organizations? 1) The two most important conference sponsors are the NBER and the AEA. 2) The most important pre-prints are the NBER yellow covers, and the AEA is one of the most important publishers.

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Tim Bresnahan

@timobres

1 year

Many got to Level 0 about Twitter: Level 0 platform economics: don't get in a box where you limit how many ads folks can see on an ad-supported product. Level 1: platform rule changes can have unpredictable fx. e.g. blocking API can change demand for other services. 1/3

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Tim Bresnahan

@timobres

2 years

A glutton for punishment (and for exceptional public service, a similar thing) Aviv Nevo previously led the Antitrust Division's Economics group. 2/3

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Tim Bresnahan

@timobres

1 year

The momentary literal powerlessness of @Pikagoldin isn't just a metaphor for the deeply embedded sexism (and racism) of academic life. It's an example. That women scholars' work was "less important" showed up in less petty ways, too; systemic and ubiquitous./2

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Tim Bresnahan

@timobres

1 year

Reading a lot of nonsense from republicans today about how BLS employment, compensation, etc. numbers are faulty. Three remarks follow.

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Tim Bresnahan

@timobres

2 years

@jenniferdoleac What an example of the working of University anti-harassment systems, protect the powerful, attack the namer.

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Tim Bresnahan

@timobres

1 year

@RemyLevin I hear it as entitled. @danariely if you have a rebuttal to make, make it publicly. And bring the receipts.

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Tim Bresnahan

@timobres

2 years

Calling on all men [mean that literally this time] of goodwill in Economics to join here. @jenniferdoleac @JustinWolfers and others they cite are good sources.

Justin Wolfers

@JustinWolfers

2 years

Economics is in something of a #metoo moment, with a number of women coming forward (and naming names) with some very disturbing revelations of sexual harassment and sexual misconduct by senior male economists. See @jenniferdoleac 's timeline for a blow-by-blow of each revelation.

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Tim Bresnahan

@timobres

2 years

Thread with the facts from @jenniferdoleac about an actual case and false claims about that case. Important because the misogynists are turning to disinformation.

Jennifer Doleac

@jenniferdoleac

2 years

False and defamatory claims about the AEA DeAngelo investigation are being circulated online by anonymous accounts. If our institutions aren’t going to protect us, we have to protect ourselves. Time to set the record straight.

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Tim Bresnahan

@timobres

1 year

When Nazis were slaughtering them, Jews found safe haven in the UK and US. Tomorrow, we must block the "day of rage" and make synagogues save havens for fellowship and prayer.

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Tim Bresnahan

@timobres

1 year

I also wrote very critically of the obit and have a different response than @wwwojtekk and @GuthmannR Reporters, like others in the political system, have simply forgotten that there is anything but advocacy and ideology. Cover the science? Doesn't exist! Cover the spin!

Wojtek Kopczuk 🇵🇱🇺🇦

@wwwojtekk

1 year

That was my reaction too - if you can't write an obituary for Robert Lucas that discusses (even critically!) intellectual merits of his work rather than making it about ideology, you have no business writing about economics because you're just a hack.

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Tim Bresnahan

@timobres

2 years

The constraint set is part of the optimization. I would very much like to hear practical, i.e., not just wishing away the constraints, proposals for further improvement in our culture and climate.

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Tim Bresnahan

@timobres

1 year

DOJ just won a monopsony antitrust merger suit: Penguin-Simon bookseller merger bad for highest-paid authors. PGA-LIV golf tour merger likely bad for highest-paid golfers. Enforcement action?

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Tim Bresnahan

@timobres

1 year

Everyone should be able to participate in our profession without experiencing harassment. Speaking in favor of EJMR's broadcasting of harassment of Economists is _is_ an attack on open science in Economics. Cut it out./4

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Tim Bresnahan

@timobres

2 years

If your university is, at the administrative level, not helpful to survivors, all the more reason to use these resources. Not much of an "if".

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Tim Bresnahan

@timobres

1 year

Stanford has put up a lovely obituary for Vic Fuchs, who died, almost 100, over the weekend. It is pretty obvious why we admire him -- brilliance, niceness, cutting humor (try those two at once...) and focus on the biggest issues.

Victor Fuchs, pioneer of health care economics, has died

Fuchs’ influence and tireless devotion to the field of health care economics and the Stanford community spanned decades.

siepr.stanford.edu

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Tim Bresnahan

@timobres

1 year

Posting harassing trash on EJMR is an attack on open science in Economics, not just on the harassed Economists. Cut it out. /5

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Tim Bresnahan

@timobres

1 year

It was the age of "don't take a man's job" and, better _intentioned_ I guess, "don't work on women's issues, you'll be seen as a lightweight." Well, @PikaGoldin sure as hell worked on "women's issues," to our great benefit./3

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Tim Bresnahan

@timobres

1 year

Congratulations @PikaGoldin . Attention to the most important questions, sustained effort in the archives and the data, brilliant insight. A great Economics Nobel.

The Nobel Prize

@NobelPrize

1 year

BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2023 Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel to Claudia Goldin “for having advanced our understanding of women’s labour market outcomes.” #NobelPrize

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Tim Bresnahan

@timobres

2 years

@NateHMiller Many good ideas here. The hard part of @NateHMiller request is capturing the game theory revolution, which was influential on but not geared toward empirical work. (I was its only customer for a while so I learned this the hard way.)

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Tim Bresnahan

@timobres

1 year

Can we win in the large, holding back this rising tide of antisemitism? I don't know. But if nobody stands up in solidarity and moral courage, you will lose Cornell and we will lose America. /9

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Tim Bresnahan

@timobres

1 year

The broke single moms of West Virginia who scrubbed floors and oversaw homework don't have time for twitter, so I speak for them. Appalling abandonment of public university purpose and of WV citizens.

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Tim Bresnahan

@timobres

2 years

@sarahwcooley @jenniferdoleac 1. Keep a list. 2. Say no when the list gets over the limit you established at the start of the academic year. 3. Tell your chair how long your list is. 4. If teaching and research are only before 9 am and after 5 pm, shorten your list.

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Tim Bresnahan

@timobres

1 year

Ideology makes you stupid.

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Tim Bresnahan

@timobres

2 years

The big deal here was the narrow market definition -- it includes Steven King (a witness) but not a no name rookie novelist. The government tends to win if it can prove a narrow market.

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Tim Bresnahan

@timobres

2 years

What? Narrow market definition bad for plaintiff? The FTC had to show that Meta, an important VR firm, was a likely entrant into "VR dedicated fitness apps." That's hard. Potential entrant arguments are harder to prove than current-competitor arguments. 4/7

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Tim Bresnahan

@timobres

1 year

In academia, the whole profession is the "workplace". Harassing women or POC in a "job market rumors" website presents the same problems as a flyer posted in the coffee room at work. Just louder and broader trash and harassment./3

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Tim Bresnahan

@timobres

2 years

The harm to competition alleged here was that fees paid to book authors would fall. More narrowly, the big fees paid to authors who have a brand name would fall. The court found a substantial likelihood of that harm from the merger.

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Tim Bresnahan

@timobres

2 years

... since cross-platform links create interoperability. Preferences results first noted by Rich Gilbert, nontechnical means to create interoperability first noted by Bresnahan-Greenstein.

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Tim Bresnahan

@timobres

11 months

Equality for women in Economics is having a good week. IZA fellows push back against an appalling leadership appointment. AEA improves (there was headroom) ombuds procedures and complaint procedures, adds prohibition on retaliation to Harassment and Discrimination policy, and /1

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Tim Bresnahan

@timobres

2 years

Tim Besley, Torsten Persson, & Guido Tabellini awarded the BBVA Foundation Frontiers of Knowledge award -- Political Economy in the big leagues! (? en La Liga?)

La Fundación BBVA premia a Besley, Persson y Tabellini por sus contribuciones a la economía política

El jurado de los Fronteras del Conocimiento destaca su capacidad de “iluminar las conexiones entre el mundo político y el económico”

elpais.com

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Tim Bresnahan

@timobres

1 year

Anonymously posting a flyer in the workplace attacking a co-worker them based on their race or gender is harassment. Ditto for an anonymous flyer attacking all women or all POC as a class. People in that class should have the right to go to work without reading that trash. /2

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Tim Bresnahan

@timobres

2 years

The government's case was quite economic on this point. Publishing houses tend to compete head to head to sign big name authors. I haven't reviewed all the economics evidence (some is redacted) but "this is way too narrow" seems like a losing argument.

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Tim Bresnahan

@timobres

2 years

Coming back to the sadness that it is true and the admiration that @jenniferdoleac and other women are doing something about it. We hear you.

Jennifer Doleac

@jenniferdoleac

2 years

If you’re a macroeconomist, I know women who are working to coordinate victims/witnesses to report bad behavior, and have received messages offering to corroborate reports if particular victims come forward. The stories I’m hearing from that field are terrible; I’m so sorry.

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Tim Bresnahan

@timobres

1 year

There is no adequate response to this horror. A prayer? God bless and keep the state of Israel and turn, once again, your face toward your chosen people

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Tim Bresnahan

@timobres

1 year

Under cover of anonymity, EJMR scum (racist misogynistic) threaten violence against @florianederer @paulgp . Pissy little punks.

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Tim Bresnahan

@timobres

2 years

There is also zero information in the Court's observing that the FTC's economist undertook a very lame analysis [not a literal quote] while nonetheless accepting his narrow market definition. That market definition, "VR dedicated fitness apps" is what sank the FTC's case. 3/7

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Tim Bresnahan

@timobres

2 years

Working as an economist in the antitrust agencies is very rewarding. Apply now!

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Tim Bresnahan

@timobres

1 year

they could hire a reporter who took Econ 1. The subhead:

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Tim Bresnahan

@timobres

1 year

(Rich) Prof. Gino sues Harvard and Data Colada @datacolada (Rich) Prof. Tessier-Lavigne sics lawyers on cub (freshman) reporter @tab_delete . One more reason to have sharp divisions between the academic and the profitable.

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Tim Bresnahan

@timobres

2 years

The opinion is excruciating careful to be conventional and break zero new ground. There is zero new ground in the Court's observation that a merger between a market participant and an entrant can harm competition 2/7

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Tim Bresnahan

@timobres

1 year

The point here is solidarity, and moral courage. Keep walking for every meal until many students, Jewish and not, join you. /5

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Tim Bresnahan

@timobres

2 years

@stelifanie Ignore EJMR, a cesspit. Thanks for distributing these licenses to beginners.

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Tim Bresnahan

@timobres

2 years

Life after academia, per my longtime friend and co-author Pai-Ling Yin.

Pai-Ling Yin brings an academic’s lens to the study of buying and selling at Amazon

How her background helps her manage a team charged with assisting internal partners to answer questions about the economic impacts of their decisions.

www.amazon.science

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Tim Bresnahan

@timobres

2 years

I didn't work on this matter or talk to anyone who did. You can find a lot of the documents I did read at

United States v. BERTELSMANN SE & CO. KGAA, 1:21-cv-02886 - CourtListener.com

Docket for United States v. BERTELSMANN SE & CO. KGAA, 1:21-cv-02886 — Brought to you by Free Law Project, a non-profit dedicated to creating high quality open legal information.

www.courtlistener.com

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Tim Bresnahan

@timobres

2 years

Normally I don't much like that market definition is suc a big part of antitrust, but this narrow one seemed to accurately capture a market reality about the workings of competition in the industry at hand.

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Tim Bresnahan

@timobres

1 year

BLS is one of the premier statistical agencies in the world. Revisions happen, especially to higher-frequency data, because not all businesses can respond quickly. Revisions are not evidence of corruption.

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Tim Bresnahan

@timobres

1 year

@johnjhorton Possibly. But weak scholars oppose the appointment of strong scholars even with tenure, so I don't buy it as the explanation.

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Tim Bresnahan

@timobres

1 year

@JoanneSpetz Victor Fuch's death marks a huge loss to Economics and to humanity. Y'all economists, please honor his memory by writing about something really important.

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Tim Bresnahan

@timobres

1 year

You need to create more value before you can extract some of it. Links are very useful to newsies and academics.

Elon Musk

@elonmusk

1 year

@MarioNawfal Interesting. Our algorithm tries to optimize time spent on X, so links don’t get as much attention, because there is less time spent if people click away. Best thing is to post content in long form on this platform.

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Tim Bresnahan

@timobres

1 year

Ask the Kosher eatery in the Center for Jewish Living to open for you. Walk to it, alone, for a meal. The campus cops and the NY State Police will freak out. Walk there, alone. The cops are at your destination already. Ask them to be discrete. /2

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Tim Bresnahan

@timobres

1 year

The tricky bit of game theory (I was its only customer for a while) is figuring out how to apply it. The most obvious point here is that TrumpLand is a powerful continuation game that might make everyone cooperate, but/1

emptywheel (little blue heron)

@emptywheel

1 year

I'm not an expert on game theory, but those who are may have a field day of figuring out the prisoner's dilemma created by the interplay of the GA and DOJ indictments.

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Tim Bresnahan

@timobres

1 year

@SennJulien Sounds like an expression of sympathy.

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Tim Bresnahan

@timobres

1 year

So now economic statistics become another reality denied by republicans, like free and fair elections in the US. Why? Economy is pretty good right now; parallel to Biden won the election. Bunch of fantasists in the GOP.

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Tim Bresnahan

@timobres

2 years

I agree with both of you @dougmelamed and @Sherman1890 . The CW standard is, in economic theory language, that market power lowers output whether monopoly or monopsony. But that doesn't mean empirical evidence must be Ps and Qs.

doug melamed

@dougmelamed

2 years

@Sherman1890 Focusing on output and price is a mistake because it invites thinking they have to be measured. CW does not require a court to measure either. It requires the court to determine the effect of the conduct on market conditions (market power) from which those effects can be presumed

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