iiinova — where your digital self keeps evolving

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CERDI @cerdi.bsky.social · 11/09/2025

📚 New study on #Kenya by @pbiscaye.bsky.social @eggerdennis.bsky.social & Utz Pape When schools reopened after #COVID closures, parents worked more, because kids had less time for farm work. Adults filled the gap, while richer households hired labor. 🔎 Read more: t.ly/wzH7g 📄 #econdev #school

Ecole en extérieur à Namarei, Kenya © IRD - Paul-André Calatayud

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CSAE @oxfordcsae.bsky.social · 02/09/2025

⭐NEW paper by the CSAE's @eggerdennis.bsky.social w/ @pbiscaye.bsky.social & Utz Pape on 'Adolescent Schooling & Adult Labor Supply: Evidence from COVID-19 School Closures & Reopenings in Kenya' published in The World Bank Economic Review August 2025 issue. #openaccess doi.org/10.1093/wber...

NEW paper by the CSAE's @eggerdennis.bsky.social et al. on 'Adolescent Schooling & Adult Labor Supply: Evidence from COVID-19 School Closures and Reopenings in Kenya' published in The World Bank Economic Review August 2025 issue. Includes cover image from this issue of the review with salmon background and CSAE logos

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CERDI @cerdi.bsky.social · 03/09/2025

#NewResearch in The World Bank Economic Review by @pbiscaye.bsky.social‬, @ucauvergne.bsky.social‬ and Cerdi. With his coauthors, Dennis Egger and Utz Pape, he investigates adolescent youth in rural #Kenya. academic.oup.com/wber/advance...

academic.oup.com

Adolescent Schooling and Adult Labor Supply: Evidence from COVID-19 School Closures and Reopenings in Kenya

Abstract. This study identifies the impact of a shock to adolescent school availability—potentially affecting both household childcare burdens and child la

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David McKenzie @dmckenzie.bsky.social · 20/08/2025

In a break from our blog break, @berkozler12.bsky.social does a deep-dive into a recent working paper that found large impacts of cash transfers on infant mortality - discussing the set of conditions needed for the effect, and some puzzles blogs.worldbank.org/en/impacteva...?

blogs.worldbank.org

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Pierre Biscaye @pbiscaye.bsky.social · 17/06/2025

Not used to meetings in such fancy places!

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Pierre Biscaye @pbiscaye.bsky.social · 24/05/2025

#COYG let’s goooo 🔥🏆😍 such a wild journey to the final and now @arsenalfc.bsky.social Women are champions!! Setting the standard for the men to follow ❤️

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Clément de Chaisemartin @cdechaisemartin.bsky.social · 01/04/2025

Please RT: I am hiring RAs, for 12-month contracts, starting in June/July or early September 2025. Apply if you’re interested in working on some fun and useful econometrics projects! #EconSky euraxess.ec.europa.eu/jobs/331499

euraxess.ec.europa.eu

Research Assistant ERC REALLYCREDIBLE

Clément de Chaisemartin is looking for research assistants, for 12 months contracts, starting in June/July or early September 2025.

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Pierre Biscaye @pbiscaye.bsky.social · 31/03/2025

Bonus of working late is I am much less annoyed about being called by my almost three year to put her blanket back on her because she is cold than if I had already been asleep. I get to enjoy a sweet parental moment instead of mentally grumbling that she can put her own damn blanket back on 😆

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Pierre Biscaye @pbiscaye.bsky.social · 31/03/2025

@leightjessica.bsky.social regularly posts threads highlighting the work of young economists and today I am fortunate that she has chosen to highlight some of my research! I encourage anyone not already doing so to follow her - she has introduced me to many cool researchers 🤩 Thanks again Jessica!

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Jessica Leight @leightjessica.bsky.social · 31/03/2025

Trying again since the thread didn't appear correctly: today's cool young researcher #econsky is @pbiscaye.bsky.social at CERDI who works on topics related to development, labor + agriculture

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Pierre Biscaye @pbiscaye.bsky.social · 24/03/2025

Prospective PhD students in development economics, consider applying to @cerdi.bsky.social! 🎓 We have funding for 6 PhD fellowships including one that would work with me 😊 on questions around environment/energy/agriculture/labor primarily in SSA context. Please share with your networks! #EconSky

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Pierre Biscaye @pbiscaye.bsky.social · 23/03/2025

Strong @cerdi.bsky.social / FERDI showing in Oxford at #OxCSAE2025 💪 Excited to present my research, see lots of cool and important studies, and catch up with other colleagues from all over! #EconSky #EconConf

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Giulia Malevolti @giuliamalevolti.bsky.social · 10/03/2025

The deadline is **today** 🚨PhD students with a paper on Development Economics, apply and come to the beautiful campus of PIK in Potsdam in June! Nice environment for feedback and a great keynote. No fee of participation #EconConf #EconSky #PhD #Econ #DevEcon 🔄please share widely🔄

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Pierre Biscaye @pbiscaye.bsky.social · 10/03/2025

Submission deadline for 2025 #EUDN PhD Workshop is Friday March 14 - doctoral students in development economics please apply! Hosted by @cerdi.bsky.social in Clermont-Ferrand from May 15-16, it will be a great opportunity to network and get feedback. #EconSky #EconConf eudn25phd.sciencesconf.org

eudn25phd.sciencesconf.org

2025 EUDN PhD Workshop on Development Economics - Sciencesconf.org

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Pierre Biscaye @pbiscaye.bsky.social · 06/03/2025

Why not a 211 team tournament??They could even have the preliminary rounds organized by continental league, to reduce travel - and allow more host nations to get in on it! Maybe then the top few teams from those tournaments could meet in some sort of final tournament in a rotating host country… 🤔🤦‍♂️

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Stefan Dercon @gamblingondev.bsky.social · 27/02/2025

Centre for the Study of African Economies at University of Oxford will automatically consider all applicants from Africa for full funding for the MPhil in Economics - we have new scholarships for eligible students. How? Just apply asap: deadline 4th March (extended deadline): see below

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Ted Miguel @tedmiguel.bsky.social · 02/03/2025

Berkeley and east bay folks - we will have a UC Berkeley campus event on Friday as part of this broader day of action — please join us and make your voice heard! www.standup4scienceberkeley.com

standup4scienceberkeley.com

Stand Up for Science Berkeley | science is a public good

The Berkeley meeting of the nationwide Stand Up for Science event on March 7. Science is for everyone.

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Jessica Leight @leightjessica.bsky.social · 26/02/2025

Better late than never. . .this week's cool young researcher #econtwitter #econsky is @ellenmcc.bsky.social @ellen_mcc who works on topics related to agriculture, labor + nutrition

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Pierre Biscaye @pbiscaye.bsky.social · 23/02/2025

Used to go to bed much later Fridays and Saturdays, staying up with friends and loved ones. Now I prize weekend nights as ones where I can permit myself to go to bed early rather than staying up to work. Love the work but it never ends! Guess that’s why I get the small 💰💰 #Academia #EconSky

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Pierre Biscaye @pbiscaye.bsky.social · 20/02/2025

Highly recommend listening to the Scam Inc podcast series by @economist.com. Eye opening and a bit scary. Never realized how huge and advanced the whole global scamming industry has become. First half of the series is available free and well worth a listen.

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Pierre Biscaye @pbiscaye.bsky.social · 03/02/2025

@cerdi.bsky.social will host the 2025 EUDN PhD workshop in Clermont-Ferrand, France on May 15-16 with Roberta Ziparo (@amseaixmars.bsky.social) as keynote speaker. aA great opportunity for PhD students to network and get feedback. Please share the below call for papers! eudn25phd.sciencesconf.org

eudn25phd.sciencesconf.org

2025 EUDN PhD Workshop on Development Economics - Sciencesconf.org

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Pierre Biscaye @pbiscaye.bsky.social · 02/02/2025

Two wins over City in one day! A barn-buster and a beat down. So sweet. #COYG @arsenalfc.bsky.social

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Matthew Gordon @mdgordo.bsky.social · 20/01/2025

PhD students consider submitting to our annual conference run by and focused on doctoral students in economics. April is a nice time to visit Paris docs.google.com/forms/d/1u7v...

docs.google.com

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Pierre Biscaye @pbiscaye.bsky.social · 14/01/2025

Gave my first economics (micro development) lecture in French today! It went pretty well but translating terminology off the cuff will be tough. Terms I learned during my lecture: -standard error = écart type -shadow wage = salaire au noir -derivative = dérivé #EconSky 🇫🇷

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Joël Machado @joelmachado.eu · 08/01/2025

With @jeromevalette.bsky.social & Simone Bertoli, we are thrilled to announce the Call for Papers for the 3rd edition of the Junior Workshop on the Economics of Migration on 23-24 June 2025 @CERDI, Clermont-Ferrand, France. Submit until 23 February 2025 on economig2025.sciencesconf.org

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Pierre Biscaye @pbiscaye.bsky.social · 13/12/2024

Enjoyed a great short trip to Copenhagen for the STEG ag and structural transformation workshop. Super cool group of researchers and a great time of feedback and discussion. Thanks @casperworm.bsky.social and Asger Wingender for hosting 🙏 I still can’t get over all the unlocked bikes! #EconSky

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Pierre Biscaye @pbiscaye.bsky.social · 12/12/2024

Observations from first visit to Copenhagen: There are bikes everywhere! 😍😍😍 Most bikes are unlocked!! 🤯🤯🤯 Most bikers aren’t wearing helmets! 🤕🤕 Interested if anyone has insights about the lock and helmet habits. Otherwise seems like a quite nice city, wish I had more time to explore.

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Pierre Biscaye @pbiscaye.bsky.social · 07/12/2024

Do other parents with 2(+) kids find it less hard when they get sick both at once or back to back? Both at once is super hard on everyone but over quicker. Back to back is easier to manage in some ways but draining and disruptive and I always end up sick too. Of course, we don't get to choose. Wooh!

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David Ubilava @davidubilava.bsky.social · 04/12/2024

The climate–conflict nexus is an active area of research. I examine how El Niño Southern Oscillation (ENSO) shocks affect political violence in Africa. Headline result: Exposure to a positive ENSO shock (an El Niño event) reduces postharvest conflict. [1/13] doi.org/10.1111/ajae...

doi.org

Climate, crops, and postharvest conflict

I present new evidence of the effects of climate shocks on conflict. Focusing on political violence in Africa, I find that El Niño Southern Oscillation shocks during the crop-growing season affect ha...

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Álvaro La Parra-Pérez @alvarolaparra.bsky.social · 01/12/2024

I've posted several times about the working paper, but the publication on "AER: Insights" is a good occasion to do it again: immigrants to the US have been less likely to be incarcerated for over 50 years **even without controlling for demographic characteristics.** www.aeaweb.org/articles?id=...

Law-Abiding Immigrants: The Incarceration Gap between Immigrants and the US-Born, 1870–2020†
By Ran Abramitzky, Leah Boustan, Elisa Jácome,
Santiago Pérez, and Juan David Torres*
We provide the first nationally representative long-run series (1870–2020) of incarceration rates for immigrants and the US-born. As a group, immigrants have had lower incarceration rates than the US-born for 150 years. Moreover, relative to the US-born, immigrants’ incarceration rates have declined since 1960: immigrants today are 60 percent less likely to be incarcerated (30 percent relative to US-born Whites). This relative decline occurred among immigrants from all regions and cannot be explained by changes in observable characteristics or immigration policy. Instead, the decline is part of a broader divergence of outcomes between less-educated immigrants and their US-born counterparts.

Panels plotting incarceration rates for immigrants and US-born men between 1870 and 2019. Data are restricted to males ages 18–40. Data spanning 1870–1940 are from the full-count decennial censuses. Data spanning 1950–1990 are from the largest available subsamples from the corresponding decennial censuses. Data from 2005 onward are from the annual ACS. Cross markers indicate that fewer than 10,000 immigrants were used to calculate the corresponding incarceration rate. Panel A compares US-born men to all immigrants. Panels B–F compare US-born men to immigrants from a particular country-of-origin group. “Old Europeans” are immigrants from countries in the north and west of Europe. “New Europeans” are immigrants from countries in eastern and southern Europe. The “Rest of the world” category includes immigrants from countries not included in panels B–F.
Migrants typically show lower incarceration rates

accounting for individual-level characteristics, migrants as a group or by subgroups (old Europeans, new Europeans, Chinese, Mexicans and Central Americans, or Rest of the World) are incarcerated at lower rates

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Pierre Biscaye @pbiscaye.bsky.social · 30/11/2024

What a week for @arsenalfc.bsky.social. 13-3 across 3 matches! After a run where we were struggling to score, looks like the international break really did us some good. #COYG keep it up!!

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Pierre Biscaye @pbiscaye.bsky.social · 27/11/2024

One of the hardest adjustments to biking/driving in France: T intersections with no stop or yield signs or roundabout where for some insane reason if I’m going straight I’m supposed to yield to a person coming from the right that is turning onto the road I’m on. What is the reason for this??

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Anna Goeddeke @annagoeddeke.bsky.social · 21/11/2024

Hi #EconSky, Not sure if the Starter Pack party's over, but I've made an Econ Starter Pack of Starter Packs! 😄 It's a work in progress, so I may have missed some. Let me know if there's anything to add—DMs are open! Thanks for support @economista.bsky.social! docs.google.com/spreadsheets...

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Gina C. Pieters, PhD @ginapieters.bsky.social · 14/11/2024

To all the new #EconSky people whi may be dealing with the Econ Job Market: *There is an #EconJMP feed *I have a PhD Job Market Starter Pack go.bsky.app/4icnwxi. If you are a candidate or an institution posting *many* openings, reach out and I will add you.

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David McKenzie @dmckenzie.bsky.social · 07/11/2024

I'm excited to kick-off our annual series of posts by PhD students in development on the job market with @mrao.bsky.social 's post on whether & when evaluation evidence affects spending on CCTs using 128 program evaluations in Latin America. blogs.worldbank.org/en/impacteva...

blogs.worldbank.org

What is the relationship between evaluation findings and policy spending?

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Pierre Biscaye @pbiscaye.bsky.social · 04/11/2024

I’ve never walked the gangplank and I’ve never owned a parrot, but now I have been to Boston in the Fall! 😆 Great conference #NEUDC2024 and enjoyed the visit as well. (For the reference: www.youtube.com/watch?v=aRYB...)

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Pierre Biscaye @pbiscaye.bsky.social · 27/10/2024

A 1 hour time change shouldn’t be such a big deal. My body and a body of evidence say otherwise. But since nearly all personal use clocks now are digital, why don’t countries implement #DaylightSavings in 15 minute increments over 4 weeks? Seems like an easy win policy change. #FallBackSlowly

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Pierre Biscaye @pbiscaye.bsky.social · 27/10/2024

I used to be productive on many weekend afternoons. Now I fall asleep in the middle of playing or reading. #parenting

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Susanna Berkouwer @sberkouwer.bsky.social · 08/10/2024

📢Please retweet📢 Profs Van Benthem, Lockwood, Low, Rees-Jones, Kessler and I are hiring 3 predoctoral researchers (in environmental, behavioral, and public econ) to start July 2025. Prior RAs got into Berkeley, Princeton and Brown (econ PhDs). Rolling review: sberkouwer.github.io/BEPPhiring.pdf

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Pierre Biscaye @pbiscaye.bsky.social · 02/10/2024

Grateful for the great comments and feedback on my paper on ag shocks and long term conflict at the #FragileLives conference at @humboldtuni.bsky.social in Berlin. Thanks to the organizers for a great conference! #ISDC #HiCN #IGZ #ZeroHungerLab

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Pierre Biscaye @pbiscaye.bsky.social · 14/12/2023

Easiest phishing scam in the world right now: find out what universities are hiring in open fields, and spam out "Interview invitation from ABC" with a sign-up link to a database of .edu emails. A non-trivial share of recipients will click that link. #EconSky

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Evan @evansmithhist.bsky.social · 14/12/2023

It's probably been done, but...

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

Thanks for reading! I’d love to talk more about my JMP and other projects (🌊 in 🇳🇬, 🔌 in 🇬🇭, 🦗 in 🇲🇼, and more) with anyone who is interested. Paper: tinyurl.com/kbdf2fdz Website: pierrebiscaye.com 13/13

pierrebiscaye.com

Pierre E. Biscaye

Hello, I am PhD candidate in Agricultural & Resource Economics at UC Berkeley on the 2023-2024 job market. I am a development economist working at the intersection of labor and environmental economics...

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

Key takeaway: ↗️ long-term conflict means negative ag shocks have worse consequences than previously understood. Permanent income ↘️ appears to be the mechanism Moving forward: 1️⃣ HH survey data on wealth, productivity to dig more into mechs 2️⃣ Role of aid/institutions in mitigating conflict ↗️ 12/13

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

Is there something unique about desert locusts? No! Severe drought exposure leads to similar long-run increases in violent conflict risk. Methods estimating temporary effects of economic shocks on conflict with FE models may thus underestimate impacts. 11/13

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

This explains why the largest impacts of swarm exposure are delayed. 73% of exposure was in the 2003-2005 locust outbreak, but violent conflict incidence was low in these countries until ~2010 due to food price shocks, Arab Spring, Islamic militant groups, etc. 10/13

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

This reduction in productivity-consistent with a wealth or permanent income mechanism-means the opportunity cost of fighting is lower. But conflict risk only increases in years with violent conflict in surrounding cells: when there are opportunities to fight. 9/13

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

Why does a one-time production shock persistently increase conflict risk? Although locust swarms do not return, I find that affected cells have 108 kg/ha lower cereal yields on average post-exposure, similar to the effect of a 1 degree C temp increase. 8/13

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Pierre Biscaye @pbiscaye.bsky.social · 01/12/2023

Estimates weighted by the inverse of the estimated probability of swarm exposure give a 0.8pp avg increase in annual risk of violent conflict after exposure, driven entirely by ag land, particularly crop cells. This greatly exceeds effects of same year rainfall or temp ⬆️s! 7/13

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