When Kennesaw State economist J.C. Bradbury issued his comprehensive study in March showing that the new Atlanta Braves stadium was leaving Cobb County taxpayers on the hook for $15 million a year, Braves execs were not happy. And now, apparently on the principle that the best answer to a good economist with a study is a hired-in-house economist with a study, the Braves have commissioned a report from … oh, my goodness, it’s Andy Zimbalist!
For those who came in late, Zimbalist was part of the first generation of economists to turn a skeptical eye on sports stadium and arena deals, notably co-editing with Roger Noll the 1997 book Sports, Jobs, and Taxes, which remains an excellent overview of why claims of economic windfalls from sports subsidies are hoohah. Zimbalist was also one of the first to turn his expertise into a lucrative ($225 an hour) consulting business, taking on gigs from the likes of Brooklyn Nets owner Bruce Ratner, New York Yankees president Randy Levine, and the cities of Anaheim, Seattle, and Worcester to write reports and/or testify publicly on the costs and benefits of sports venues.
These reports were, ah, not always conducted with the rigor of Zimbalist’s other work. Memorably, his report for Seattle — which was arguing in court that losing the Sonics to Oklahoma City had cost the city money — turned out to be largely copied from his report for Anaheim — and since Anaheim was arguing that the presence of the Los Angeles Angels didn’t create a huge economic benefit, Zimbalist simply reversed his conclusions at the end. In the case of Worcester luring the Pawtucket Red Sox to town with a new taxpayer-funded stadium, he: cited University of San Francisco economist Nola Agha’s work to argue that minor-league subsidies are more justifiable, only to have Agha reply that that “virtually never works”; earned criticism from economist Victor Matheson, who actually works in Worcester at College of the Holy Cross, that “Andy is using his credentials and his prominence to basically give cover to the Worcester city council and [city manager] Ed Augustus to go forward with this project”; and later admitted (to me, for an article in pre-decimation Deadspin) that he hadn’t calculated all the costs of, for example, providing schooling to all the new residents he was crediting the Worcester stadium project for attracting.
As for the latest Zimbalist missive on behalf of Cobb County, let’s let the Marietta Daily Journal provide the takeaway:
Accompanying the county’s own numbers was a new, Braves-commissioned study prepared by Smith College economist Andrew Zimbalist, which is pitched as a corrective to Bradbury’s findings. The lead finding is that by 2046, the county is expected to see a return on its initial investment of between $19.6 million and $125.6 million.
Braves management touted the study as a long-awaited vindication of the deal, saying in a news release, “This should put to rest any questions on whether this project has been a win for Cobb County taxpayers, who have seen a major return on their investment.”
But have they really? The strength of Bradbury’s study was that he looked at the actual numbers for economic activity in Cobb County before and after the stadium — sales tax receipts, property values, and so on — and compared them with other neighboring counties to see if Cobb did significantly better as a result of the stadium. (Answer: It did not.) Zimbalist’s report, meanwhile, starts off with a long section on how the Braves owners put up a bigger share of construction costs than many other teams (the public share for Cobb County being 45% vs. an average for all stadiums from 1970 to 2010 of 70%, though as he doesn’t footnote the latter figure it’s possible he’s not comparing apples to apples here), charges Bradbury with providing “no foundation, either methodological or empirical,” for his sales tax figures, and accuses him of focusing solely on short-term losses for Cobb County when the real gains will be, he says, far into the future.
The MDJ didn’t bother to call Bradbury for comment for their article, but J.C. doesn’t need no legacy print newspapers when he has Twitter:
Once again, Marietta Daily Journal breaks out "the template" with another banner headline touting the economic benefits of Truist Park. The paper has still not reached out to me for comment. The reporter has my cell number. pic.twitter.com/azXRyZDYVc
— J.C. Bradbury (@jc_bradbury) June 15, 2022
For example, Andy writes that I don't explain my methods. I devote an entire section and separate appendix explaining the origin of the $3 estimate. Furthermore, I detail the calculation in a peer-reviewed journal article, which is linked in the report. https://t.co/1iW2lWMbww pic.twitter.com/Qu5Ty6LJys
— J.C. Bradbury (@jc_bradbury) June 14, 2022
I presented the findings as they were discovered over the past 2 years through social media, public presentations, and ultimately publication in academic journals where I received many comments from other economists. None from Andy.
— J.C. Bradbury (@jc_bradbury) June 15, 2022
The reality is that Andy Zimbalist is a shill (I don't use that term lightly), and has been for a long time, using his reputation as a former stadium skeptic to cash in by saying: but this one is different! See Atlantic Yards, Wooster, Seattle. This is just another example.
— J.C. Bradbury (@jc_bradbury) June 15, 2022
My analysis is retrospective, to observe what happened, which is standard for economic studies of sports stadiums. My results conform with all previous studies. If Andy thinks we should be doing things differently, then he needs to run his new method through standard peer review.
— J.C. Bradbury (@jc_bradbury) June 15, 2022
If Andy is right, this would represent a major shit within economics, and should be used to change the discipline. That he chooses to present notably contrary findings only when paid, but not in academic journals is telling.
— J.C. Bradbury (@jc_bradbury) June 15, 2022
Shift not shit…but yet it still works.
— J.C. Bradbury (@jc_bradbury) June 15, 2022
Phew! No reply yet from Andy on Twitter, but given that he tweets about 0.0001% as often as Bradbury, that’s probably no surprise. And anyway, as J.C. rightly points out, the proper forum for hashing this stuff out is in a peer-reviewed academic journal, whereas Zimbalist just typed out a Word file and sent it along to his client, which passed it along to reporters. This resulted in the MDJ’s headline “Braves tout new study on fiscal benefits, landing between ‘home run’ and ‘pop fly’,” as well as a way more skeptical article in the Atlanta Journal-Constitution (“Visitors paying less, businesses more for Cobb stadium bonds”).
In any case, this is yet another reminder that not all “reports” are created equal, and it’s important to look at who has paid for them, how rigorous their methodology is, etc. Or, as a far wiser observer once noted, it takes more than a clear plastic binder to make for good research.









