Greg Shill

Greg Shill

@gregshill.com

Professor of Law at Arizona State University • Student of firms, cities & transportation (and Seinfeld) • Papers: ssrn.com/author=887547 • Newsletter: gregshill.substack.com • Cohost, Densely Speaking podcast http://www.denselyspeaking.com/ • gregshill.com

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I’m thrilled to be joining the next edition of Local Government Law as a co-author. Very much looking forward to working with Lynn Baker, Clay Gillette, David Schleicher, and (also new to this edition) Nadav Shoked, all of whose work has shaped how so many of us think about the field.

Those of us old enough to remember the 2012 campaign and Romney 47% comment know these figures are essentially the same in the US. Currently, about 40% of US households pay no federal income tax and the top 20% of the income distribution pays about 80-85% of federal individual income tax.

Clara Jeffery@clarajeffery.bsky.social

whoa www.nytimes.com/2026/10/26/w...

Jevons update: The AI-use anecdotes I hear from medicine are the same as law: it’s juicing demand (for tests, interrogatories, etc.) by generating more ideas, which is then expressed in higher spending. I don’t know that we have good, global evidence yet but this is consistent with what we do know.

Pall Mall, great place to hire a flat for a coronation.

Orin Kerr@orinkerr.bsky.social

For those confused that the National Mall has no shopping, the etymology of the word "mall" is particularly interesting.

I love taking robotaxis personally, but in the big picture this is a far more promising form of automated vehicle.

Scott Lincicome@scottlincicome.bsky.social

"Some US transit systems weigh whether to run trains without a human at the controls" www.wral.com/news/ap/dd55...

We may soon find out whether states that have a proposition process are a risk to business formation and retention.

It’s going to be option 4, I don’t see much in recent experience to suggest otherwise. Whether or not the gas tax is formally abolished we have in practice moved road funding over to the general fund.

Yonah Freemark@yonahfreemark.com

The federal Highway Trust Fund, which funds road & transit, faces a >$318 billion shortfall by 2036. How can Congress address this? —Cut spending by 40% —Increase the gas tax —Implement new taxes (VMT, registration) —Transfer from the general fund We lay it out: taxpolicycenter.org/taxvox/congr...

Unironically, this is because the transit isn't good enough. I have spent many days in NYC running around two or three boroughs, doing tons of stuff.

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Another great book that I assign a lot of in my transportation law class.

Christof Spieler@christofspieler.bsky.social

My favorite graphics in "Transportation and the Shape of Cities" #6: A typical transit route gets its ridership from lots of shorter trips that overlap each other, not from end-to-end trips. The more destinations along the way, the more of those trips it can serve, and the higher ridership is.

“Use an app on your phone to bet on football powerhouse Indiana University or Big Ten rival USC” is not a sentence that would have made sense to me just a few years ago.

This is a *great* book, btw. I assign more and more of it in my transportation law class. It's sort of organized as a textbook but it's also a good read. I recommend (and one day may just assign) the whole thing.

Greg Shill@gregshill.com

The planner/engineer distinction inspired by a discussion in @transportist.org and Garrison's The Transportation Experience (global.oup.com/academic/pro...). Some passages:

Every big paper has run a story like this in recent years. Why nothing changes: “The state can’t add more crosswalks, reduce the number of lanes or lower the speed limit on Union Avenue, all of which would take time and money,“ said the state DOT, which owns the road. 🔓: www.wsj.com/us-news/the-...

wsj.comThe Deadly 1.5-Mile Corridor That Shows the Fatal Flaw in America’s Road DesignSix lanes and crosswalks a half-mile apart: How American urban-planning is failing walkers.

A nit: this is partly "urban planning" (as the article says), but predominantly "transportation planning." What's the difference? -different gov't entities (municipal land use authority vs. state transportation agency) -different professionals w/ different cultures (planners vs. traffic engineers)

This phenomenon combines two forces: the choice to fund so much of state and local services via property rather than income taxes, and demographics—namely, a population aging out of the work force (and thus some income tax) but not property taxes.

Politico@politico.com

“I’m old. I’ve paid my home off,” said Ray Warner, a 72-year-old Akron resident. “Why would I pay property tax?” Across the country, homeowners are asking the same question and revolting against property taxes at a scale not seen in a half century.

I published a paper in 2023 on the potential for companies with dual-class shares (DCS) to engage in norm-breaking behavior. The gap between “regular” companies like Apple & Microsoft and DCS companies like Meta (one of my examples), SpaceX, CBS & ByteDance since then has exceeded my expectations.

Marc Elias@marcelias.bsky.social

X is owned by Musk. TikTok is blocking the Musk movie account. Meta blocked the No Kings account. This is why Democracy Docket is not built on SubStack or any third-party platform that could one day turn against it. It costs more to operate but is worth it. Subscribe now. demdock.com/4w6emld

The sea was angry that day, my friends.

Nick Ulivieri@nuphoto.com

Last night's sunset was a dream. After a brief, gusty downpour, the rain cleared and this scene of crashing waves underneath a cotton-candy sky revealed itself for a fleeting moment.

To state the obvious, there's a time and a place for everything. No one cares if you use it to create an initial short summary of your article for an internal memo. Many wouldn't care if you use it to create a blog post. But readers of scholarship do care, and appropriately so, and they notice.

Fascinating paper on demand for legal services. More uncertainty --> more demand, higher prices for legal services. To me, the likely mechanism is uncertainty + high-variance mechanisms of deciding it, i.e., common-law litigation and judging.

"demand for legal intermediation arises from asymmetric information about the law—lawyers know how the law governs conduct, while most people do not… Demand grows with expansion of the law’s reach and with changes that make its application less predictable or that raise the returns to invoking it."

"The 'parking problem' is as old as the road itself. In the seventh century BC, the Assyrian king Sennacherib posted signs that read ROYAL ROAD—LET NO MAN DECREASE IT, under penalty of death and public impalement. (And you complain about parking tickets.)" -Henry Grabar, Paved Paradise

"Up until the invention of the automobile, however, the volatile nature of horses was its own form of regulation: you couldn't leave your horse on the street for a week. The advent of the car . . . turned the parking problem into a major dilemma." -Grabar, Paved Paradise

Greg Shill reposted

"SafeWalkr has features that other mapping programs don’t have, the students said. Their program tells users which streets have sidewalks, for instance, and it recommends which side of the road to walk on." Their principal "considers the practice [of walking to school] to be a 'lost art'"

The Washington Post@washingtonpost.com

Virginia high school students wanted to help their peers identify speedy and safe walking routes to school. They developed SafeWalkr, which combines data from Google Maps and street databases to map crosswalks, traffic and sidewalk coverage.

Recent work suggests scope for more road pricing interventions. In a forthcoming article (2nd screenshot), Jonathan Levine and I argue that before widening highways, DOTs should be required to conduct an evaluation of the costs and benefits of road pricing instead. www.nber.org/papers/w35887

The UK's Personal Independence Payment (PIP) program is possibly the closest-ever attempt at socialism for car ownership, now accounting for 1 in 7 new car sales in the country. I look forward to the papers studying the impacts. Gift link to WSJ article: www.wsj.com/world/uk/uni...

🚨 Updated version of Transportation for the Abundant Society (with Jonathan Levine) now posted. It’s our answer to the question, what does “abundance” mean in the context of transportation policy? We think it’s distinct from domains like housing. Feedback welcome. papers.ssrn.com/sol3/papers....

papers.ssrn.comTransportation for the Abundant Society<p><span><span>“Abundance” seeks to overcome artificial scarcity in the built environment. Yet the movement’s signature goal—increasing the housing supply—is al

It was a pleasure presenting last week at the Conference on Empirical Legal Studies at Northwestern. I learned a lot, both from other people's work and their feedback on my paper (on shocks to firm location). A warm and welcoming community as well. It was my first CELS; looking forward to next time.

Greg Shill@gregshill.com

I’ll just need your 875 N. Michigan on that

When I was in practice, my firm asked me to go to London for "a few weeks, a month maybe." The 6 months I spent there were foundational for my career. One habit I picked up was reading the Financial Times—for reasons of focus, quality, and perspective. Like the broader UK press, they're permabears.

Guy Berger@econberger.bsky.social

Indeed job postings creeping up, +2.5% Y/Y. Not a boom, but things are getting better

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This thread prompted by OP's thread on labor market strength. It's hard to find anything like this in US non-financial media or UK financial media. It saddens me a bit because I find myself reading the FT less. "Maybe this positive financial indicator is actually bad" is a well-reported story now.

Of course, the financial disasters could materialize. My point is that that possibility is now part of the reporting in US financial and non-financial media alike, and has been for quite a while. The distinctive voice of FT sceptics is less clear to me at this point.

When I was in practice, my firm asked me to go to London for "a few weeks, a month maybe." The 6 months I spent there were foundational for my career. One habit I picked up was reading the Financial Times—for reasons of focus, quality, and perspective. Like the broader UK press, they're permabears.

Guy Berger@econberger.bsky.social

Indeed job postings creeping up, +2.5% Y/Y. Not a boom, but things are getting better

View full thread

This year, however, US media has tilted into bearishness or at least balance, eroding the distinctiveness of the UK press. Even in the WSJ and other financial media, you can read deeply reported skeptical takes on the catalyst of the US boom (AI).

At a minimum, the US financial press is now both a cheerleader and a megaphone of concern. In the non-financial press, negativity about everything consumer and employment dominates, as well as negative AI. Increasingly I wonder where this leaves the distinctiveness of the Sceptical British Take.

When I was in practice, my firm asked me to go to London for "a few weeks, a month maybe." The 6 months I spent there were foundational for my career. One habit I picked up was reading the Financial Times—for reasons of focus, quality, and perspective. Like the broader UK press, they're permabears.

Guy Berger@econberger.bsky.social

Indeed job postings creeping up, +2.5% Y/Y. Not a boom, but things are getting better

The US economy has a lot of cheerleaders—arguably, all of US financial media—and so many years later, as someone who researches markets in various forms, I continue to find it helpful to have a "devil's advocate" perspective on current events.

Greg Shill reposted

The placement of lots of local govt capital assets (schools, fire stations, etc) assumes that the local development landscape is more or less fixed in time—demand for those services will always exist nearby. However, we know this isn't true. We don't think enough about decline in local govt.

Interesting thread. To me the open question is what to do with Georgism today given its (to me, contingent) origin in laissez-faire land use controls. In modern America, where LU regulation is intense in magnitude and layered in source, how to arrive at a "true" valuation as a tax basis?

Erik Loomis@erikloomis.bsky.social

This Day in Labor History: October 5, 1886. Henry George accepted the nomination of the United Labor Party for the mayor of New York City. Let's talk George's Single Tax and the fight for reform in the Gilded Age!

It's true that municipal assessment bodies already do an imperfect job of assessing value. But that's in a world where their assessments are based on currently existing law. Hard to imagine them building in the possibility of a regime change that would be necessary for a land value tax to work.

"Well, just upzone everything and use a land value tax." Ok, well, that's assuming the politics feasibility of the regime change. Presumably the local homeowners will welcome this change with flowers. There's a reason "LVT will fix this" became a meme.

Greg Shill reposted

Speed cameras are unlawful in New Jersey but the state does allow local police to use photos from these 'Safety Sticks' to identify drivers who park illegally in crosswalks. They then get a parking ticket in the mail... www.nj.com/traffic/2026...

nj.comCameras are catching illegal parkers in N.J. towns, and tickets are arriving in the mailThe solar-powered roadside cameras snap pictures of vehicles parked in restricted areas.