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Brad Shapiro Profile
Brad Shapiro

@btshapir

Followers
7K
Following
45K
Media
1K
Statuses
20K

Marketing Professor @ChicagoBooth. Co-editor @QME_Journal. Tweeting about economics, advertising, dogs and sometimes soup. SSRN page: https://t.co/LcTRerqE

@ChicagoBooth
Joined August 2011
Don't wanna be here? Send us removal request.
@btshapir
Brad Shapiro
3 years
As lots of people are liking a post I wrote that has the word "advice" in it, I need to issue my periodic reminder that my advice may in fact be terrible. I know very little, in general.
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@StuLoren
Stuart Loren
3 hours
Solid article and reporting. But I do find this framing odd (other city papers did same thing). On an absolute basis and compared to the rest of the country, these city councilors are very liberal. That they are sane and pragmatic doesn’t mean they are politically conservative.
@CrainsChicago
Crain's Chicago Business
7 hours
It's official: Council approves 2026 budget without Johnson's head tax
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@chicagobars
Chicago Bars
20 hours
Pretty depressing that one mean letter from US DOT is going to get the @CTA to do what actual CTA customers have been asking for since at least 2022. It is almost like the @CTA cares more about keeping the Federal & State money coming in than the customers. 🤔
@CWBChicago
CWBChicago
2 days
A CTA security surge will start tomorrow, increasing the number of cops assigned to the transit system from 77 a day to about 120 per day, officials say. https://t.co/eKzML5JQ6K
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@btshapir
Brad Shapiro
1 day
Beautiful day for a flight! @fly2ohare @americanair
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@AccuAir
AccuAir Suspension
4 months
From rock crawling to city cruising, AccuAir's got you covered.
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@btshapir
Brad Shapiro
1 day
Doing the unthinkable: Going to Costco and purchasing exactly 1 item 😱
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@btshapir
Brad Shapiro
1 day
Lol
@RossTuckerNFL
Ross Tucker
2 days
There is NO way Stafford should win MVP after that loss. Not after he allowed the punt return TD, three two point conversions, and missed that field goal. No way.
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@btshapir
Brad Shapiro
2 days
Marshawn Lynch is a national treasure. https://t.co/Dyle7DzK2v
Tweet card summary image
instagram.com
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@btshapir
Brad Shapiro
2 days
😭
@AldConway
Alderman Bill Conway
2 days
Fun fact: over my STRONG objections, City Council is set to give Mayor Johnson a $3.7B capital slush fund w/ virtually no oversight. Again today, he made no secret of wanting taxpayers to pay for a Bears stadium. The Bears asked for $2.4B & now the Mayor can borrow & build it!
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@denofwolvesgame
Den of Wolves
16 days
The plan was clean. The escape? Not so much. Midway City doesn’t play fair. Wishlist this 4-player coop heist FPS on Steam today.
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@jbarro
Josh Barro
3 days
It is absurd what a cheap date Democrats are with unions. The Teamsters don’t even try to get Democrats elected anymore, and Dems still endorse their Luddite nonsense, on top of having taxpayers do a $36 billion bailout of their pension fund.
@SenFettermanPA
U.S. Senator John Fetterman
4 days
I fully agree with @Teamsters. Self-driving trucks should *always* be supervised by a qualified professional to keep our roads safe. It���s a necessary partnership for America’s highways and economy.
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@AldConway
Alderman Bill Conway
4 days
The City already has $2.4B in unused borrowing authority for projects. Taking on an extra $1.3B for the Mayor’s slush fund doesn’t just warrant scrutiny — it may not be necessary at all! My plan would’ve met our obligations responsibly & avoided pushing the City deeper into debt.
@business
Bloomberg
4 days
Chicago Mayor Brandon Johnson’s proposal to sell $3.8 billion in bonds is facing opposition from a key member of the city council finance committee as the deadline to pass the 2026 budget nears.
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@btshapir
Brad Shapiro
3 days
Similar story for managers making business decisions. You *should* use your priors. You *should* update them with data. You *should* make the profit maximizing decision given these things. An RCT estimated treatment effect is neither necessary nor sufficient for this process.
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@btshapir
Brad Shapiro
4 days
Scientific researchers are often interested in estimating a causal (average) treatment effect. Parents deciding how to teach their kids to read are trying to make a decision for their kid. These are not the same objectives.
@NielsHoven
Niels Hoven 🐮
4 days
Can't make this thread up. Academia, paraphrased: > "What if it's just a coincidence that kids are learning to read while using Mentava?" > "How can you know if you taught them to read without a randomized controlled trial?" > "Kids used Mentava, and then they could read.
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@GentlemansGuru
Gentleman's Guru
4 days
Indulge yourself with class, style, and sophistication. Dress to impress this holiday season with Gentlemen's Guru. Shop the latest styles in men's formal wear and accessories for the modern gentleman. Get assistance from our Experts Award Winning Brand
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@btshapir
Brad Shapiro
4 days
"I created these specific jobs" being used as a positive by a politician causes all manner of perverse effects. People seem to love jobs programs and imagine that they are free. Turns out you have to pay for jobs programs in a variety of ways, either through prices or taxes.
@bryancsk
Bryan Cheong
4 days
One of the reasons why specific things are scarce or expensive in the US (why are there so few elevators, why are after-school activities so costly) is because of highly sophisticated rent-seeking that seems weirdly socially acceptable in America.
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@AlecStapp
Alec Stapp
4 days
Reminder that the elevator union's contract explicitly prohibits preassembly and prefabrication in factories:
@bryancsk
Bryan Cheong
4 days
One of the reasons why specific things are scarce or expensive in the US (why are there so few elevators, why are after-school activities so costly) is because of highly sophisticated rent-seeking that seems weirdly socially acceptable in America.
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@btshapir
Brad Shapiro
4 days
Big flaw in this argument: It was never Allen v. Mahomes. It was Bills Defense v. Mahomes. Allen doesn't play defense. And this might be the worst Bills defense of Allen's career.
@AdamSchefter
Adam Schefter
4 days
With Patrick Mahomes and Joe Burrow eliminated from postseason contention, Josh Allen is now facing the type of playoff path he never has before. More with @tyschmit: 🎧 https://t.co/XFGmG3twbY
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@btshapir
Brad Shapiro
29 days
🚨New Working Paper! "California's firearm excise tax is almost fully passed on to consumers", joint with Sara Drango and Sarah Moshary. We study CA's July 2024 implementation of an 11% excise tax on firearms and ammunition. We find that the tax falls ~entirely on customers.
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@BROHagan3
B.R. O'Hagan
5 days
My annual New Year's message this year is for men-mostly because I have two son-in-laws. You can read the full article at the link. Please share it, too. Two
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@ashdgandhi
Ashvin Gandhi
5 days
Inspections are a critical tool used by regulators to ensure that restaurants, healthcare, housing, etc., are safe. While the exact dates of these inspections are typically unannounced, their general timing is often highly predictable. Our new paper suggests that's a problem. 🧵:
@nberpubs
NBER
5 days
Nursing home effort fluctuates with the inspection cycle, affecting patient survival. Unpredictable inspection schedules may boost effort and save lives, from @ashdgandhi, @andrewolenski, and @maggieshi311 https://t.co/2zxWpM25MV
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@nberpubs
NBER
5 days
Nursing home effort fluctuates with the inspection cycle, affecting patient survival. Unpredictable inspection schedules may boost effort and save lives, from @ashdgandhi, @andrewolenski, and @maggieshi311 https://t.co/2zxWpM25MV
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@btshapir
Brad Shapiro
5 days
Interesting new work from @ashdgandhi about nursing homes, this time about the inspections process. The "Charlie Work" episode of It's Always Sunny in Philadelphia is totally a thing in nursing homes.
@ashdgandhi
Ashvin Gandhi
5 days
Inspections are a critical tool used by regulators to ensure that restaurants, healthcare, housing, etc., are safe. While the exact dates of these inspections are typically unannounced, their general timing is often highly predictable. Our new paper suggests that's a problem. 🧵:
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@btshapir
Brad Shapiro
5 days
@JaySkurski
Jay Skurski
5 days
"It's disgusting to us, to be honest with you," Bills defensive coordinator Bobby Babich said of giving up 31 points yesterday.
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@VisionProd78760
Vision Products
4 months
Many environments. One Vision Cage. Our reptile enclosures are touted for their safety, longevity, and versatile climate control abilities. See if the Vision Cage is the right choice for your pet!
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@MattParrino
Matt Parrino
6 days
Josh Allen is the MVP I don’t care about stats and all the other nonsense folks spew about. If you watched this game and didn’t come away saying the same thing, you don’t know ball. Allen is inevitable. Some folks put Drake Maye in his league this week. The youngster is awesome.
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