Allison Shertzer
@econhist-allday.bsky.social
Economic historian of U.S. cities. Interested in segregation, land use regulation, and affordability over the long run. Views expressed here are my own. Personal website at allisonshertzer.com.
Reposted by Allison Shertzer
HPV Vaccination Tied to Huge Reduction in Cervical Cancer Risk www.medpagetoday.com/hematologyon...
HPV Vaccination Tied to Huge Reduction in Cervical Cancer Risk
Two large meta-analyses reassure on safety, efficacy
www.medpagetoday.com
November 24, 2025 at 9:25 PM
HPV Vaccination Tied to Huge Reduction in Cervical Cancer Risk www.medpagetoday.com/hematologyon...
Reposted by Allison Shertzer
NYT: “.. high insurance costs are cascading into the broader real estate market, suppressing home values by an average of $44,000 in the top 10 percent of U.S. ZIP codes most vulnerable to hurricanes and wildfires ..”
@nytimes.com
www.nytimes.com/interactive/...
@nytimes.com
www.nytimes.com/interactive/...
November 20, 2025 at 8:06 PM
NYT: “.. high insurance costs are cascading into the broader real estate market, suppressing home values by an average of $44,000 in the top 10 percent of U.S. ZIP codes most vulnerable to hurricanes and wildfires ..”
@nytimes.com
www.nytimes.com/interactive/...
@nytimes.com
www.nytimes.com/interactive/...
Reposted by Allison Shertzer
NEW:
In 2024, Tierra Walker was sick and getting sicker. She was also pregnant.
She knew abortion was illegal in Texas, but thought there was an exception for women like her, whose health was at risk. Doctors told her there was no emergency.
Then she died.
www.propublica.org/article/texa...
In 2024, Tierra Walker was sick and getting sicker. She was also pregnant.
She knew abortion was illegal in Texas, but thought there was an exception for women like her, whose health was at risk. Doctors told her there was no emergency.
Then she died.
www.propublica.org/article/texa...
“Ticking Time Bomb”: A Pregnant Mother Kept Getting Sicker. She Died After She Couldn’t Get an Abortion in Texas.
Walker is one of several women ProPublica found with underlying health conditions who died when they couldn’t access abortions.
www.propublica.org
November 19, 2025 at 11:08 AM
NEW:
In 2024, Tierra Walker was sick and getting sicker. She was also pregnant.
She knew abortion was illegal in Texas, but thought there was an exception for women like her, whose health was at risk. Doctors told her there was no emergency.
Then she died.
www.propublica.org/article/texa...
In 2024, Tierra Walker was sick and getting sicker. She was also pregnant.
She knew abortion was illegal in Texas, but thought there was an exception for women like her, whose health was at risk. Doctors told her there was no emergency.
Then she died.
www.propublica.org/article/texa...
Reposted by Allison Shertzer
🚀 I'm on the #EconSky Job Market!
My JMP asks a classic question:
Do large, dominant firms foster or hinder innovation?
To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont.
A JMP 🧵👇 (1/13)
My JMP asks a classic question:
Do large, dominant firms foster or hinder innovation?
To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont.
A JMP 🧵👇 (1/13)
November 11, 2025 at 7:55 PM
🚀 I'm on the #EconSky Job Market!
My JMP asks a classic question:
Do large, dominant firms foster or hinder innovation?
To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont.
A JMP 🧵👇 (1/13)
My JMP asks a classic question:
Do large, dominant firms foster or hinder innovation?
To study this, I turn to the Great Merger Wave (1895–1904), when >2,600 U.S. firms combined into corporate giants like U.S. Steel and DuPont.
A JMP 🧵👇 (1/13)
After 15 years together, it was time to refresh DRECON.
November 8, 2025 at 2:24 PM
After 15 years together, it was time to refresh DRECON.
Rick, you dropped this. 👑
Seriously what an incredible data project!
Seriously what an incredible data project!
Hi all, please spread the word and we hope everyone can make good use of this new data drop: cmfdata.org
The full surviving establishment-level Census of Manufactures manuscripts and digitized data from 1850, 1860, 1870, and 1880!
The full surviving establishment-level Census of Manufactures manuscripts and digitized data from 1850, 1860, 1870, and 1880!
Historical Census of Manufactures Microdata - Historical Census of Manufactures Microdata
CMFdata.org
November 6, 2025 at 10:24 PM
Rick, you dropped this. 👑
Seriously what an incredible data project!
Seriously what an incredible data project!
Reposted by Allison Shertzer
Reposted by Allison Shertzer
This Day in Labor History: October 26, 1825. The Erie Canal opened, eight years after construction commenced. This engineering marvel would have enormous impacts on the future of American work, including spurring ever-greater industrialization. It also killed over 1,000 workers building it!
October 26, 2025 at 12:55 PM
This Day in Labor History: October 26, 1825. The Erie Canal opened, eight years after construction commenced. This engineering marvel would have enormous impacts on the future of American work, including spurring ever-greater industrialization. It also killed over 1,000 workers building it!
Reposted by Allison Shertzer
Recently accepted by #QJE, “The Price of Housing in the United States, 1890–2006,” by Lyons (@ronanlyons), Shertzer (@econhist-allday), Gray (@econhistoryorbust), and Agorastos: doi.org/10.1093/qje/...
The Price of Housing in the United States, 1890–2006*
Abstract. We construct the first annual market rent and home sales price series for American cities over the 20th century using 2.7 million newspaper real
doi.org
October 16, 2025 at 5:58 PM
Recently accepted by #QJE, “The Price of Housing in the United States, 1890–2006,” by Lyons (@ronanlyons), Shertzer (@econhist-allday), Gray (@econhistoryorbust), and Agorastos: doi.org/10.1093/qje/...
Reposted by Allison Shertzer
@enghin-atalay.bsky.social, Ali Hortacsu, Nicole Kimmel, & Chad Syverson argue that standard measurements understate true #productivity growth in the US #manufacturing sector, especially in industries were it is difficult to track changes in quality growth.
cepr.org/voxeu/column...
#EconSky
cepr.org/voxeu/column...
#EconSky
October 14, 2025 at 7:37 AM
@enghin-atalay.bsky.social, Ali Hortacsu, Nicole Kimmel, & Chad Syverson argue that standard measurements understate true #productivity growth in the US #manufacturing sector, especially in industries were it is difficult to track changes in quality growth.
cepr.org/voxeu/column...
#EconSky
cepr.org/voxeu/column...
#EconSky
Reposted by Allison Shertzer
Mokyr's work could not have been done today in most economics departments, but the irony is that his work would not fit in history departments today, either. Methodologically he seems more 'history' than 'economics' to economists, but the content and reasoning are too 'economics' for most historians
October 13, 2025 at 1:55 PM
Mokyr's work could not have been done today in most economics departments, but the irony is that his work would not fit in history departments today, either. Methodologically he seems more 'history' than 'economics' to economists, but the content and reasoning are too 'economics' for most historians
Ronan is dropping more facts about the U.S. housing market over time and space using the HHP dataset:
ronanlyons.substack.com/p/101-things...
ronanlyons.substack.com/p/101-things...
101 things we now know about US housing markets (Part IV)
World War I and the Roaring Twenties
ronanlyons.substack.com
September 15, 2025 at 5:53 PM
Ronan is dropping more facts about the U.S. housing market over time and space using the HHP dataset:
ronanlyons.substack.com/p/101-things...
ronanlyons.substack.com/p/101-things...
Reposted by Allison Shertzer
The big story here is of an agency of dedicated statisticians and public servants working tirelessly to improve economic data in a climate of budgetary cuts to data collection. They have been very innovative in meeting that mandate. But we should also just fund our economic infrastructure.
Important to remember that thanks to the dedicated public servants at BLS, employment estimates have become MORE accurate over time
And the final version of the preliminary revision reported today will probably be smaller when it is incorporated early next year
And the final version of the preliminary revision reported today will probably be smaller when it is incorporated early next year
The preliminary benchmark revision of -911K amounts to -0.6% to March 2025 payroll employment. Combined with 2-month revisions, recent total revisions are big but hardly unprecedented, & smoothed over the business cycle the payroll survey has gotten more accurate over time.
September 9, 2025 at 4:27 PM
The big story here is of an agency of dedicated statisticians and public servants working tirelessly to improve economic data in a climate of budgetary cuts to data collection. They have been very innovative in meeting that mandate. But we should also just fund our economic infrastructure.
Reposted by Allison Shertzer
Help my colleague find all the ways in which his work is reaching your students!
Are any of my papers on your syllabus? Undergrad, PhD, econ history, or (preparing myself for crickets) a non-econ history class are all great. DMs are open and huge thanks in advance
(I guess @barbarabiasi.com is a month ahead of me on tenure packet paperwork)
(I guess @barbarabiasi.com is a month ahead of me on tenure packet paperwork)
Hello #econtwitter community: if any of you has been teaching any of my papers, would you mind shooting me a DM? I would hugely appreciate that 🙏 and thanks in advance!
August 12, 2025 at 3:13 PM
Help my colleague find all the ways in which his work is reaching your students!
Reposted by Allison Shertzer
Examining the effects of public debt on municipal services and real outcomes during financial crises using data on US cities from 1924 to 1943, from Pawel Janas https://www.nber.org/papers/w34011
July 16, 2025 at 5:00 PM
Examining the effects of public debt on municipal services and real outcomes during financial crises using data on US cities from 1924 to 1943, from Pawel Janas https://www.nber.org/papers/w34011
New release for the HHP project. We now have rent and sales price indexes for 30 cities along with rental yields, capital gains, and housing returns for the years 1890-2006. Online data viz tools and download here:
www.philadelphiafed.org/surveys-and-...
www.philadelphiafed.org/surveys-and-...
Historical Housing Prices Project
The Historical Housing Prices (HHP) Project at the Philadelphia Fed provides new data on the price of housing for sale and for rent over the 20th century using the real estate sections of historical n...
www.philadelphiafed.org
July 16, 2025 at 1:02 PM
New release for the HHP project. We now have rent and sales price indexes for 30 cities along with rental yields, capital gains, and housing returns for the years 1890-2006. Online data viz tools and download here:
www.philadelphiafed.org/surveys-and-...
www.philadelphiafed.org/surveys-and-...
Reposted by Allison Shertzer
One of the most surprising details in the latest CPI: an increasing share of price data was estimated, not observed.
In June, over 1/3 of #CPI imputations came from other items or locations likely due to budget cuts and staffing shortages at BLS.
We can’t fight #inflation without reliable data.
In June, over 1/3 of #CPI imputations came from other items or locations likely due to budget cuts and staffing shortages at BLS.
We can’t fight #inflation without reliable data.
July 15, 2025 at 4:34 PM
One of the most surprising details in the latest CPI: an increasing share of price data was estimated, not observed.
In June, over 1/3 of #CPI imputations came from other items or locations likely due to budget cuts and staffing shortages at BLS.
We can’t fight #inflation without reliable data.
In June, over 1/3 of #CPI imputations came from other items or locations likely due to budget cuts and staffing shortages at BLS.
We can’t fight #inflation without reliable data.
I am looking for a research assistant to work with me on the development of U.S. housing markets. Experience with ArcGIS, Stata useful. We build datasets that allow us to understand housing affordability, the impacts of transit and zoning, and more:
rb.wd5.myworkdayjobs.com/en-US/FRS/jo...
rb.wd5.myworkdayjobs.com/en-US/FRS/jo...
Research Assistant/Sr. Research Assistant
Company Federal Reserve Bank of Philadelphia Job Description Summary Research assistants (RAs) at the Philadelphia Fed play a key role in the Economic Research Department. Whether they are helping eco...
rb.wd5.myworkdayjobs.com
July 7, 2025 at 6:29 PM
I am looking for a research assistant to work with me on the development of U.S. housing markets. Experience with ArcGIS, Stata useful. We build datasets that allow us to understand housing affordability, the impacts of transit and zoning, and more:
rb.wd5.myworkdayjobs.com/en-US/FRS/jo...
rb.wd5.myworkdayjobs.com/en-US/FRS/jo...
My 9 yo composed a song about me. 🥹
July 6, 2025 at 9:37 PM
My 9 yo composed a song about me. 🥹
How was this in the bargain bin??
book stores are cool. first edition 1898. bargain bin $5.
July 1, 2025 at 8:52 PM
How was this in the bargain bin??
Reposted by Allison Shertzer
This isn't good: "BLS is reducing sample in areas across the country. In April, BLS suspended CPI data collection entirely in Lincoln, NE, and Provo, UT. In June, BLS suspended collection entirely in Buffalo, NY." #EconSky
www.bls.gov/cpi/notices/...
www.bls.gov/cpi/notices/...
Notice of CPI collection reductions
Notice of CPI collection reductions
www.bls.gov
June 4, 2025 at 6:04 PM
This isn't good: "BLS is reducing sample in areas across the country. In April, BLS suspended CPI data collection entirely in Lincoln, NE, and Provo, UT. In June, BLS suspended collection entirely in Buffalo, NY." #EconSky
www.bls.gov/cpi/notices/...
www.bls.gov/cpi/notices/...
Economic historians take note - big methodological advances in digitizing data from old, irregularly formatted tables. But they are easy to use.
Curious how accurate multimodal LLMs are at digitizing diversely formatted historical tables?
➡️ pretty accurate!
➡️ helps a lot with harmonization
➡️ far cheaper than manual digitization
➡️ but iterative, disciplined prompt training is important!
Check out our new WP - arxiv.org/abs/2505.11599
➡️ pretty accurate!
➡️ helps a lot with harmonization
➡️ far cheaper than manual digitization
➡️ but iterative, disciplined prompt training is important!
Check out our new WP - arxiv.org/abs/2505.11599
June 2, 2025 at 4:35 PM
Economic historians take note - big methodological advances in digitizing data from old, irregularly formatted tables. But they are easy to use.
In Dublin to meet with @ronanlyons.bsky.social and present to @cephie.bsky.social. Enjoying the sunshine, eating all the pub food, and doing research in together in person. Highly recommend getting an Irish coauthor.
May 7, 2025 at 8:20 PM
In Dublin to meet with @ronanlyons.bsky.social and present to @cephie.bsky.social. Enjoying the sunshine, eating all the pub food, and doing research in together in person. Highly recommend getting an Irish coauthor.
Reposted by Allison Shertzer
JUST IN: ProPublica’s “Life of the Mother” series, which exposes the fatal consequences of abortion bans, has won the Pulitzer Prize for Public Service.
This is the second consecutive year we’ve been awarded this distinction and our eighth Pulitzer: www.propublica.org/series/life-...
This is the second consecutive year we’ve been awarded this distinction and our eighth Pulitzer: www.propublica.org/series/life-...
May 5, 2025 at 7:37 PM
JUST IN: ProPublica’s “Life of the Mother” series, which exposes the fatal consequences of abortion bans, has won the Pulitzer Prize for Public Service.
This is the second consecutive year we’ve been awarded this distinction and our eighth Pulitzer: www.propublica.org/series/life-...
This is the second consecutive year we’ve been awarded this distinction and our eighth Pulitzer: www.propublica.org/series/life-...