Catia Batista
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catiabatista.bsky.social
Catia Batista
@catiabatista.bsky.social

Professor of Economics | NovaSBE
Founder and Scientific Director | NOVAFRICA @novafrica.bsky.social

International migration, economic development & policy impact evaluation

https://catiabatista.org/

Economics 36%
Political science 24%
Pinned
New paper out in @science.org!

“Brain drain” or “brain gain”?
Effects of high-skilled international emigration on origin countries

doi.org/10.1126/scie...
All are welcome to the launch talk for the new VoxDevLit on International Migration! Co-authored with @catiabatista.bsky.social, @econgaurav.bsky.social, @dmckenzie.bsky.social, @mushfiq-econ.bsky.social , Caroline Theoharides.
Wed 14 Jan, 9 am US eastern.
📢 International migration is one of the most powerful tools available for poverty reduction and economic development.

At our VoxDevLit launch event on January 14, Dean Yang will summarise evidence on international migration.

Register➡️ https://ow.ly/y5n150XRWT9

Thrilled to be back at @novafrica.bsky.social @NovaSBE
and to celebrate the many research achievements of our community!

Looking forward to what's ahead in 2026!
Starting 2026 with momentum at NOVAFRICA!

The past year brought impactful research and events for our community. We look ahead to next year as we celebrate NOVAFRICA's 15th anniversary!

In this thread: key publications and gearing up for the #NOVAFRICA2026 conference 👇

Reposted by Cátia Batista

@catiabatista.bsky.social Han Haushofer Khanna McKenzie Mobarak Theoharides & Yang (2025)
"Brain Drain or Brain Gain?"
Science

Main finding:
Skilled #emigration can possibly create a variety of “brain gains” for origin countries.

www.science.org/doi/10.1126/...
Brain drain or brain gain? Effects of high-skilled international emigration on origin countries
How does emigration of highly educated citizens of low-income countries to high-income countries affect the economies of the origin countries? The direct effect is “brain drain”—a decrease in the coun...
www.science.org

Reposted by Cátia Batista

@catiabatista.bsky.social & #PedroVicente (2025)
"Is Mobile Money Changing Rural Africa?"
Review of Economics and Statistics

Main finding:
Newly introducing #MobileMoney in #Mozambique promoted #StructuralTransformation by inducing #Migration out of rural areas

direct.mit.edu/rest/article...
Is Mobile Money Changing Rural Africa? Evidence from a Field Experiment
Abstract. Rural areas in sub-Saharan Africa are typically underserved by financial services. Mobile money brings a substantial reduction in the transaction costs of remittances. We follow the introduc...
direct.mit.edu

Reposted by Cátia Batista

Starting 2026 with momentum at NOVAFRICA!

The past year brought impactful research and events for our community. We look ahead to next year as we celebrate NOVAFRICA's 15th anniversary!

In this thread: key publications and gearing up for the #NOVAFRICA2026 conference 👇

Thank you for highlighting our article - honored to be in such great company!

Reposted by Cátia Batista

Kicking off 2026 w/ a list of my favorite published dev papers from 2025 #econtwitter #econsky! (Favorite, not best, because best is hard to define - but I loved these papers + learned a lot from them. by "2025", I mean in a journal volume last year)
📢 International migration is one of the most powerful tools available for poverty reduction and economic development.

At our VoxDevLit launch event on January 14, Dean Yang will summarise evidence on international migration.

Register➡️ https://ow.ly/y5n150XRWT9

Reposted by Cátia Batista

📢 Call for Papers

2026 NOVAFRICA Conference on Economic Development

June 18-19 - @NovaSBE Lisbon, Portugal

Submit your paper by Feb 15: bit.ly/4pKGkjs

Keynotes:
Abhijit Banerjee #MIT
Isaac Mbiti @notredame.bsky.social
Sandra Sequeira @sandrasequeira.bsky.social #LSE

#NOVAFRICA2026

Reposted by Cátia Batista

In today's JMP blog, @hardiahmed.bsky.social uses DiD to show how sharia law reform in Northern Nigeria affected child health and fertility, and how this varies with enforcement intensity. Weak enforcement of child protection laws particularly harmed non-muslims blogs.worldbank.org/en/impacteva...?
Enforcement Matters: How Nigeria’s Sharia Reform Created Winners and Losers: Guest Post by Hardi Ahmed
blogs.worldbank.org

With @jeromevalette.bsky.social & Jesús Fernández-Huertas Moraga, we are happy to announce the CfPapers for the

4th edition of the Junior Workshop on the Economics of Migration

on May 26-27, 2026 @uc3meconomics.bsky.social, Spain.

Submit until February 1, 2026 on economig2026.sciencesconf.org

Thanks to E&M for the thoughtful interview and to our incredible field team and partners in Mozambique!

Interview: issuu.com/media4develo...

Paper: doi.org/10.1162/rest...
Is Mobile Money Changing Rural Africa? Evidence from a Field Experiment
Abstract. Rural areas in sub-Saharan Africa are typically underserved by financial services. Mobile money brings a substantial reduction in the transaction costs of remittances. We follow the introduc...
doi.org

Bottom line:
Mobile money does much more than speed up transactions - it can transform rural economies, strengthen resilience, and accelerate structural change and urbanization.

Welfare improved:
Despite less farming, households reported higher well-being, fewer episodes of hunger, and higher spending on essentials like education and medicines.

Agricultural activity declined:
With more urban migration opportunities, families reduced agricultural activity and investment. This shows how simple financial technologies can shift labour and reshape local economies.

Remittances went up:
The value of remittances received more than doubled for treated households — especially when they were hit by shocks like floods or health problems. Mobile money became a powerful tool for risk sharing.

Migration increased:
Households with access to mobile money were 14.5 percentage points more likely to have a migrant two years later. Cheaper, safer remittances make migration a more viable strategy.

Our study was the first randomized field experiment to introduce mobile money in rural areas with no prior access to formal financial services.

We followed about 100 villages over 3 years to measure how this technology reshaped rural life.

I spoke with #Media4DevelopmentMoçambique about our work on the impacts of #MobileMoney in rural #Mozambique, based on research joint with #PedroVicente published in the #ReviewOfEconomicsAndStatistics. 🧵👇

Interview: issuu.com/media4develo...

Paper: doi.org/10.1162/rest...

Reposted by Cátia Batista

I was happy to join the "Forum de Economia" at #BancodePortugal to discuss the topic of #Youth #Emigration from #Portugal.

Important insights from the work by #NunoAlves and #VandaCunha, who brought much-needed evidence to a key public policy debate.

Read more: www.bportugal.pt/en/node/427935
What have we learned about training entrepreneurs?

Issue 4 of our VoxDevLit on Training Entrepreneurs by @dmckenzie.bsky.social, Christopher Woodruff & Co-Editors is out now!➡️ voxdev.org/voxdevlit/tr...

Today's podcast covers the update➡️ voxdev.org/topic/firms/...

Read our most recent related work here:

novafrica.org/research/int...
NOVAFRICA » Integrating Migrants: Experimental Evidence on Cross-Border Spillovers
novafrica.org

In this recent podcast, I discussed why it is important to invest in #migrant #integration policies to reap the win-win benefits of international migration - with an application to recent immigration to Portugal.

Thank you to #JoseMariaPimentel and the #45Graus podcast @jornalexpresso.bsky.social
Cátia Batista: “As naturalizações que funcionam melhor são as que combinam exigência com um processo rápido”
Cátia Batista: “As naturalizações que funcionam melhor são as que combinam exigência com um processo rápido”
expresso.pt

It was a pleasure talking to @scihanna.bsky.social @researchluxembourg.org about how scientific evidence can inform #Migration #Policy making!

We discussed evidence from our recent @science.org article on how emigration can be harnessed to support the economic development of origin countries.

Reposted by Cátia Batista

Cátia Batista: “As naturalizações que funcionam melhor são as que combinam exigência com um processo rápido”
Cátia Batista: “As naturalizações que funcionam melhor são as que combinam exigência com um processo rápido”
expresso.pt
Today's cool young researcher #econtwitter #econsky is @robertohsu @NOVAFRICA @NovaSBE who works on topics related to labor, entrepreneurship, and finance

Reposted by Cátia Batista

🎙️ New #SciLux ep: Does "brain drain" actually hurt home countries?

Research of @catiabatista.bsky.social challenges this - migration possibilities can boost education back home.

Final episode powered by @researchluxembourg.org. Next season: research across Europe!

#migration #economics #podcast
🚀 Applications are open for the #PhD in #Economics at @NovaSBE !

Shape the future of #DevelopmentEconomics with hands-on research, full funding and collaboration with NOVAFRICA researchers.

🔗 Apply: www.novasbe.unl.pt/en/programs/...
🔗 More about NOVAFRICA: novafrica.org

Congratulations for a super interesting conference! Great to hear and exchange with so many other researchers working on irregular migration from West Africa to Europe.