iiinova — where your digital self keeps evolving

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Peter Nencka 📊 @peternka.bsky.social · 17/09/2026

🚨 Announcing OpenCensus, a new project with @ezrakarger.bsky.social : We are transcribing the historical US censuses and releasing them as open data 2.6 million people so far in 1940, browse here: opencensus.us

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Review of Economics and Statistics (REStat) @restatjournal.bsky.social · 17/09/2026

FAIR plans meant to fix insurance redlining accidentally accelerated the urban decline they meant to prevent. Just Accepted new paper by Ingrid Gould Ellen, Daniel A. Hartley, Jeffrey Lin @jeffrlin.bsky.social and Wei You zurl.co/Gatdo

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Jeffrey Lin @jeffrlin.bsky.social · 08/09/2026

Recently finished reading M.R. Carey’s Infinity Gate (2023) and Echo of Worlds (2024). Sci-fi multiverse where main character discovers inter-dimensional travel to millions of alternate Earths, many of which belong to federation known as the Pandominion.

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Jeffrey Lin @jeffrlin.bsky.social · 03/09/2026

What’s the value of a compact city? How would we know? Check out our latest Densely Speaking interview with the great Nina Harari 👇

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Greg Shill @gregshill.com · 04/09/2026

✈️ Traveling this weekend? I created a tool to make your airport time less annoying. Would love feedback. airportwtf.com

airportwtf.com

Airport WTF

Find food, coffee, bathrooms, and airport lounges near your gate at the 50 busiest U.S. airports.

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Jeffrey Lin @jeffrlin.bsky.social · 03/09/2026

What’s the value of a compact city? How would we know? Check out our latest Densely Speaking interview with the great Nina Harari 👇

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Juan Moreno-Cruz @jmorenocruz.bsky.social · 27/08/2026

I really love that paper. I’ve replicated it with my students.

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Greg Shill @gregshill.com · 27/08/2026

🚨 New Densely Speaking pod! @jeffrlin.bsky.social and I interview Wharton economist Mariaflavia Harari, author of "Cities in Bad Shape: Urban Geometry in India." I learned so much from this very fun conversation. Spotify: open.spotify.com/episode/6TgG... Apple: podcasts.apple.com/us/podcast/c...

open.spotify.com

S5E2 - Cities in Bad Shape: Urban Geometry in India (Mariaflavia Harari)

Densely Speaking · Episode

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YIMBYonese Liberation Army @dingbattitude.bsky.social · 25/08/2026

I think you have to believe that in a kafkaesque way, an existing urban freeway is impossible to tear down while it stands, and impossible to rebuild after it collapses.

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Chris Severen @chrisseveren.bsky.social · 14/08/2026

@foxecon.bsky.social and and I organize some urban + spatial talks at the SEAs :: Simon's put together a page of current and prior programs 🔗 sfuchs-de.github.io/sea-spatial/

sfuchs-de.github.io

Junior Spatial at the SEA

Junior Spatial: organized sessions in spatial, urban, transport, and trade economics at the Southern Economic Association Annual Meeting.

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Jeffrey Lin @jeffrlin.bsky.social · 04/08/2026

Our new paper has an explanation for both slowing TFP growth and increasing R&D that is consistent with the Fort et al interpretation that the links between a firm’s R&D and *other* firms’ productivity has weakened.

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Jeffrey Lin @jeffrlin.bsky.social · 05/08/2026

🛣️ 🌆 How do the quality of life costs of highways vary across cities? In a new review article (forthcoming at RSUE), Brinkman and I expand our Freeway Revolts methodology across US metropolitan areas.

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Jeffrey Lin @jeffrlin.bsky.social · 04/08/2026

To understand rising R&D, the key move is to see that new ideas might be infinitely reusable (nonrival, cf Romer) but in practice each idea is only “locally” useful. A new tractor design benefits a farmer, but a consultant would benefit more from a new spreadsheet.

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Kohei Takeda @koheitakeda.bsky.social · 07/08/2026

Now available online and open access: The Economic Dynamics of City Structure: Evidence from Hiroshima's Recovery | Journal of Political Economy: Vol 0, No ja www.journals.uchicago.edu/doi/10.1086/...

journals.uchicago.edu

The Economic Dynamics of City Structure: Evidence from Hiroshima's Recovery | Journal of Political Economy: Vol 0, No ja

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Jeffrey Lin @jeffrlin.bsky.social · 05/08/2026

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Jeffrey Lin @jeffrlin.bsky.social · 04/08/2026

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Jeffrey Lin @jeffrlin.bsky.social · 30/07/2026

ICYMI, our new paper on inventor positioning in the space of ideas and what it might mean for growth. Thread here bsky.app/profile/jeff...

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Julian Reif @julianreif.bsky.social · 29/07/2026

“Two teams can find nearly the same fact. The paper with the higher general-interest ceiling may not have a dramatically more credible estimate. It may instead ask the estimate to do more.”

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NBER @nber.org · 25/07/2026

Analysis of 11 million US patents shows inventions have spread out in idea space since 1836, helping explain weaker spillovers and lower research productivity, from Ina Ganguli, Jeffrey Lin, Vitaly Meursault, and Nicholas F. Reynolds www.nber.org/papers/w35499

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Allison Shertzer @econhist-allday.bsky.social · 24/07/2026

Collisions in idea space!

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Jeffrey Lin @jeffrlin.bsky.social · 24/07/2026

Here's the video of my presentation of this paper at the NBER SI: www.youtube.com/live/405kSya...

youtube.com

Macroeconomics and Productivity, NBER Summer Institute

YouTube video by NBER

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Stan Veuger @stanveuger.bsky.social · 22/07/2026

My paper on DC’s long recovery from the 1968 riots, joint work with Leah Brooks and Jonathan Rose, is now live at @restatjournal.bsky.social.

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Jeffrey Lin @jeffrlin.bsky.social · 20/07/2026

I’m presenting this paper Tuesday 1:40pm at the NBER SI and live on YouTube. Tune in! www.nber.org/conferences/...

nber.org

SI 2026 Macroeconomics and Productivity

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Jeffrey Lin @jeffrlin.bsky.social · 20/07/2026

I’m presenting this paper Tuesday 1:40pm at the NBER SI and live on YouTube. Tune in! www.nber.org/conferences/...

nber.org

SI 2026 Macroeconomics and Productivity

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Jeffrey Lin @jeffrlin.bsky.social · 15/07/2026

We’re back with a new season of interviews with leading scholars and thinkers. Listen and let us know what you think!

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Jeffrey Lin @jeffrlin.bsky.social · 15/07/2026

We’re back with a new season of interviews with leading scholars and thinkers. Listen and let us know what you think!

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Greg Shill @gregshill.com · 14/07/2026

🚨 new Densely Speaking!🚨 Prof. Arianna Salazar-Miranda (Yale urban planning /data science) joins us to talk about her tech-enabled analysis of footage of urban social spaces over 30 years. @jeffrlin.bsky.social Spotify: open.spotify.com/episode/1ciA... Apple: podcasts.apple.com/us/podcast/d...

open.spotify.com

S5E1 - Exploring the Social Life of Urban Spaces Through AI (Arianna Salazar-Miranda)

Densely Speaking · Episode

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Greg Shill @gregshill.com · 14/07/2026

🎙️🎙️🎙️ Coming tomorrow! The first interview in the latest season of "Densely Speaking: Conversations about Cities, Economics & Law." Subscribe here or wherever you get your pods: Apple: podcasts.apple.com/us/podcast/d... Spotify: open.spotify.com/show/1u2DOty... @jeffrlin.bsky.social

podcasts.apple.com

Densely Speaking

Education Podcast · Densely Speaking: Conversations About Cities, Economics & Law

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Greg Shill @gregshill.com · 10/07/2026

🚨 New ~Densely Speaking~ season starts next week!!! 🚨 Subscribe here or wherever you get your podcasts for interviews about new work on cities, economics & law, hosted by @jeffrlin.bsky.social and me. podcasts.apple.com/us/podcast/d... (Bonus pic of my dog because he’s a good boy.)

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Jeffrey Lin @jeffrlin.bsky.social · 08/07/2026

The plaza outside RTM turned out nicely, especially with the lighting improvements. They *should* make it permanent!

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Tyler Pasciak LaRiviere @tylerplariviere.bsky.social · 06/07/2026

PHOTOS: Deep Tunnel has never reached its limit. After weekend's heavy rains, it’s almost full. Here's what that means.

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Jeffrey Lin @jeffrlin.bsky.social · 06/07/2026

On February 14, 1876, Bell & Gray each filed for a telephone patent. Such collisions were once routine — up to 1 in 20 patents triggered an "patent interference." Over the next 150 years, that rate fell by more than 98%. In a new paper, we explain why — and what it might cost.

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Alyssa Fowers @alyssafowers.bsky.social · 07/07/2026

Obsessed with this chart from NOTUS's @andrewvandam.bsky.social www.notus.org/analysis/map...

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Jeffrey Lin @jeffrlin.bsky.social · 06/07/2026

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Erika McEntarfer @erikamcentarfer.bsky.social · 18/06/2026

A very nice write-up on why data users should be concerned about the new Commerce Dept. policy, which likely means a lot of granular, local-level data used for economic development is about to disappear. agglomerations.eig.org/p/a-new-thre...

agglomerations.eig.org

A New Threat to Economic Data

A Commerce Department policy risks damaging the public’s understanding of the economy.

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Noel Johnson @ndjohnson.bsky.social · 19/06/2026

@alextaylorecon.bsky.social and I have a new paper. Using embeddings of ~800k book titles in Europe 1450-1650, we find higher market access made a city's print output more topically broad and mainstream. Also, useful-knowledge content predicts city growth. www.dropbox.com/scl/fi/iez0u...

dropbox.com

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Aaron Sojourner @aaronsojourner.org · 14/06/2026

From former U.S. Census Chief Scientist John Abowd on LinkedIn, what Census data products are affected by Commerce's new policy? A devastating set of answers including all ACS Public Use Micro Samples www.linkedin.com/posts/john-a...

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Erika McEntarfer @erikamcentarfer.bsky.social · 09/06/2026

I’m afraid she’s right. All LEHD data use some form of noise infusion in order to release detailed data. What on earth does the admin have against noise infusion? It’s useful if you want to avoid suppressions, which the new rules also ask for

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Pete @peeete.bsky.social · 04/05/2026

Learning that Jane Jacobs moved to Toronto and converted a rooming house into a 6 bedroom mansion is something I've never really been able to process.

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Greg Shill @gregshill.com · 01/05/2026

“a 1% increase in the tax rate reduces suburb-to-city commuting by 6.39%” and, the authors estimate, “[r]eplacing the wage tax with a non-distortionary land value tax would bring 26,000 jobs from the suburbs into Philadelphia. Such gains triple when we allow for productivity agglomeration forces.”

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NBER @nber.org · 30/04/2026

Describing the US Census Bureau’s experimental data product combining survey data with satellite imagery to detect single-family housing starts, from Czaplicki, Shevlin, Ferronato, Smith, Nayam, Peng, Springer, and Walker www.nber.org/papers/w35113

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