Joaquin Carbonell
@joaquinc.bsky.social
Research | Data Science at the California Department of Social Services. All views my own.
Want to use your data science and engineering skills for good? Consider applying for this Research Data Engineer position on my team or help us spread the word! Link to job posting in next skeet - Apply by July 27! 🧵about our team's work and the job 1/7
Congestion pricing improved air quality in the entire metro region, putting to rest one of the last arguments of opponents: That it would harm people that live outside the zone. news.cornell.edu/stories/2025...
Congestion pricing improved air quality in NYC and suburbs | Cornell Chronicle
Cornell researchers tallied the environmental benefits of New York City’s congestion pricing program and found air pollution dropped by 22% in Manhattan, with additional declines across the city’s fiv...
news.cornell.edu
Excellent review of HHS-ASPE’s new “study” of the impact of Medicaid work requirements on poverty. @chloeneast.bsky.social and @adrianna.bsky.social bringing that heat 🔥 donmoynihan.substack.com/p/the-trump-...
Nice roundup of the literature on the effect of upzoning on housing supply among other things by @urbaninstitute.bsky.social housingmatters.urban.org/how-upzoning...
How Upzoning Affects Housing Supply
Many jurisdictions are considering or have already enacted zoning reforms to boost housing supply. Here’s what research tells us about when it delivers new h…
housingmatters.urban.org
Ever wonder how to get rid of a mattress? Or how to find resources for a neighbor in need? Call 311. 311 is contacted 100,000 times every day, 7 days a week, 52 weeks a year. No call is too small. So on the anniversary of 311 (3/11), I decided to answer some of those calls myself.
"all fortunes are family fortunes, all power is family power, and all status is family status" That's a powerful line
Tressie McMillan Cottom@tressiemcphd.bsky.social · 4mo agoOne of the more engaging citations I’ve received in awhile. Kinship Interlocks: How the Intimate Exchange of Wealth, Status, and Power Generates Upper-Class Persistence By Shay O’Briena in ASR journals.sagepub.com/doi/pdf/10.1...
They were going to pass rules to phase out gas stoves, until they received 20,000 public comments against the regulations. Except, oops, it turns out the comments were generated by AI.
Southern California air board rejected pollution rules after AI-generated flood of comments
The opposition appeared overwhelming: Tens of thousands of emails poured into Southern California's top air pollution authority as its board weighed a June proposal to phase out gas-powered appliances...
phys.org
Some deep truths about the Cuban exile community. Beautiful essay. www.equator.org/articles/the...
The Thing We Call Exile • EQUATOR
A Cuban writer contemplates his new life in America, as Washington puts the island under siege once again
equator.org
Tests for p-hacking can have low power; non-rejections do not indicate an absence of p-hacking. Just Accepted new paper by Graham Elliott, Nikolay Kudrin @NKudrin and Kaspar Wüthrich. zurl.co/EggwF
The Power of Tests for Detecting p-Hacking
Abstract. A flourishing empirical literature investigates the prevalence of p-hacking based on the distribution of p-values across studies. Interpreting
zurl.co
Reading this story—about how the Pentagon has been given so much extra money it's struggling to spend it all—while thinking about the formerly homeless tenants I've spoken with in recent weeks whose housing vouchers are being discontinued for "lack of funds."
Trump aides struggle with how to spend $500 billion more on military
Some senior officials resisted the decision to approve the major military spending increase, people familiar with the matter say.
washingtonpost.com
This a great piece of investigative journalism. @rollingstone.com This should be required reading for scientists and ethicists. Ethics matter, especially in science. www.rollingstone.com/politics/pol...
New Documents Reveal a Controversial Vaccine Study's Unusual Path to CDC Approval
A new investigation has found irregularities in the ethics review of a grant to study effects of a birth dose of hepatitis B vaccine in Guinea-Bissau.
rollingstone.com
🚨Thrilled to share our new @nber.org WP. Research and policy often assume teacher effectiveness is essentially fixed. We revisit this question by studying what happens when high-performing teachers are incentivized to transfer to struggling schools. 🧵 nber.org/papers/w34845
Holy moly this chart: Cumulative US measles cases
Carl Quintanilla@carlquintanilla.bsky.social · 6mo ago(CNN) - The fast-growing measles outbreak in South Carolina is now the largest in the United States since the disease was declared eliminated in this country more than two decades ago. @cnn.com www.cnn.com/2026/01/27/h...
The research and data shop here at CDSS is #hiring for TWO data engineer positions that will be essential to the modernization of our data infrastructure. Help us spread the word! 𝐒𝐚𝐥𝐚𝐫𝐲: $91,680 per year 𝐀𝐩𝐩𝐥𝐲 𝐛𝐲: Feb 6 𝐀𝐩𝐩𝐥𝐲 𝐡𝐞𝐫𝐞: calcareers.ca.gov/CalHrPublic/...
CA reduced EBT theft by 83% since Jan 2024: www.kcra.com/article/cali... A few reflections on this work 🧵below Disclaimer: This is my view as a private citizen though I work at CDSS and have been involved in the dept's response to theft for the last 3.5 yrs 1/10
California sees major drop in EBT fraud and theft, state leaders say
According to state data shared exclusively with KCRA 3 on Thursday, there has been an 83% decline in theft associated with Electronic Benefits Transfer.
kcra.com
Listen, I know the housing shortage is killing a great American city, but that really is one of our most historically significant Safeways www.sfchronicle.com/sf/article/s...
Marina’s reaction to Safeway tower plans: ‘Along comes this behemoth right on the waterfront’
Plans to put a 25-story apartment complex on San Francisco’s Marina district sparked concerts about a future where the city’s waterfront is ringed by tall housing structures.
sfchronicle.com
I am increasingly convinced the optimal number of laptops per child is 0 (or at least much lower than 1). From the latest Journal of Public Economics issue: doi.org/10.1016/j.jp...
AI dialogues shifted political support by 2 to 3 points in trials, eclipsing standard ads. Roughly one-third of this effect persisted for a month. However, models optimized for persuasion proved more factually error-prone. #MLSky
AI chatbots can persuade voters to change their minds
Conversations with AI can sway people’s political views. Concerningly, a chatbot’s facts are not always accurate, especially when it supports right-wing positions.
nature.com
striking that so many cities are seeing parallel homicide declines this year. i have no good explanation jasher.substack.com/p/the-fbi-wi...
hilzoy@hilzoy.bsky.social · 8mo agoYour periodic Baltimore homicides update: Baltimore continues to be on track for 150 homicides this year. If you look at the graph you can see how amazing this is, although, of course, that's still 150 too many.
🧵New paper out: “Beyond Time: Unveiling the Invisible Burden of Mental Load” with Barigozzi, Monfardini, Montinari, @elenapisanelli.bsky.social @svevav.bsky.social 🔗 arxiv.org/abs/2505.11426 /1
Beyond Time: Unveiling the Invisible Burden of Mental Load
This paper introduces a novel, scalable methodology to measure individual perceptions of gaps in mental load -- the cognitive and emotional burden associated with organizing household and childcare ta...
arxiv.org
Policy research folks take note - CPL's research is very influential in California state policy and this high-impact role will help expand that influence. Consider applying and share with your networks!
The California Policy Lab@capolicylab.bsky.social · 10mo agoPlease share with your networks: The California Policy Lab is hiring a policy director to amplify our policy impact in Sacramento. We're looking for a seasoned policy professional with deep experience in California state government. First review date is Oct. 10th: capolicylab.org/careers/poli...
One week until this job posting closes. Do dope research, serve the great state of California. Join us.
Joaquin Carbonell@joaquinc.bsky.social · 12mo agoOur research shop at the CA Dept of Social Services is #hiring for a Principal Researcher calcareers.ca.gov/CalHrPublic/... Posting closes 9/15. Please help us spread the word! This position will lead high impact research projects and shape/set standards for our research portfolio.
This is a great research team for those seeking to make impact within government.
Joaquin Carbonell@joaquinc.bsky.social · 12mo agoOur research shop at the CA Dept of Social Services is #hiring for a Principal Researcher calcareers.ca.gov/CalHrPublic/... Posting closes 9/15. Please help us spread the word! This position will lead high impact research projects and shape/set standards for our research portfolio.
An opportunity to join our fantastic research team at the California Department of Social Services!
Joaquin Carbonell@joaquinc.bsky.social · 12mo agoOur research shop at the CA Dept of Social Services is #hiring for a Principal Data Enigneer calcareers.ca.gov/CalHrPublic/... Posting closes 9/8. Please help us spread the word! This position will build data pipelines for our in-house research and analytics.
Our research shop at the CA Dept of Social Services is #hiring for a Principal Researcher calcareers.ca.gov/CalHrPublic/... Posting closes 9/15. Please help us spread the word! This position will lead high impact research projects and shape/set standards for our research portfolio.
Data Engineer
Looking to make a difference? Join our strong and mighty workforce. We offer benefits and growth opportunities and impact the lives of millions of Californians.
calcareers.ca.gov
Always happy to uplift job opportunities that can have a positive impact for children and families! Check out the opportunity at the top of this thread👇 Thank you for the shout out, @joaquinc.bsky.social! We always appreciate working with the California Department of Social Services team.
Joaquin Carbonell@joaquinc.bsky.social · 12mo agoWork with real ones like @konradfranco.bsky.social @bwilden.bsky.social and many more non-bluesky folks. Also an opportunity to work with some of our great research partners like @ppicnotes.bsky.social @capolicylab.bsky.social @codeforamerica.org @chapinhall.bsky.social @thepeoplelab.bsky.social
Our research shop at the CA Dept of Social Services is #hiring for a Principal Data Enigneer calcareers.ca.gov/CalHrPublic/... Posting closes 9/8. Please help us spread the word! This position will build data pipelines for our in-house research and analytics.
Data Engineer
Looking to make a difference? Join our strong and mighty workforce. We offer benefits and growth opportunities and impact the lives of millions of Californians.
calcareers.ca.gov
Richest guy in the world telling us we can’t afford to have our government fund cancer research.
