Constantine Manda

Work-in-progress.

[Constantine Manda @msisiri]

@Udadisi I wish ila haiwezi hata siku moja kunitokea kwa kweli na ni bora maana bichwa langu tayari kubwa 😂

[isaac Samuel @rhaplord]

Ibadan in 1854.
https://t.co/3oskhHDCRK

[isaac Samuel @rhaplord]

Map of continental orientations according to Diamond.

In reality, Africa is almost as wide as Eurasia. The red line from Dakar (Senegal) to Ras Hafun ( Somalia) is 7,458 km, which is about is about 94% the distance between Brussels and Beijing at 7,958.
https://t.co/wMcEidnPiX

[isaac Samuel @rhaplord]

Tomorrow's Substack article explains what this book gets wrong about African history

[Typical African @Joe__Bassey]

Beautiful children of the soil from Ethiopia's Omo Valley. 🇪🇹

[Srishti @srishticodes]

Stanford just made a $200,000 AI degree free.

No application.
No tuition.
No “elite access”.

Stanford released its actual AI/ML curriculum on YouTube.
Not a PR-friendly intro.
Not “AI for the public”.

This is the real thing.
The same lectures shaping people working on frontier models.

What just became public:

Deep Learning (CS230)
→ https://t.co/DUtL9MO6Y7

Transformers & LLMs (CME295)
→ https://t.co/gN57biwLsE

Language Models from Scratch (CS336)
→ https://t.co/GnH11pPBdW

ML from Human Feedback (CS329H)
→ https://t.co/X9nxEX6PNg

Computer Vision (CS231N)
→ https://t.co/oBxKKWZP22

LLM Evaluation & Scaling
→ https://t.co/1tDpw9ArTq

The uncomfortable truth:

The degree isn’t the scarce asset anymore.
Execution speed is.

Top schools know this.
That’s why they’re publishing the playbook.

👉 Bookmark this.
Comment the first lecture you’ll actually watch.

[QJE @QJEHarvard]

Recently accepted by #QJE, “Enlightenment Ideals and Belief in Progress in The Run-up to the Industrial Revolution: A Textual Analysis,” by Almelhem, Iyigun, Kennedy, and Rubin (@jaredcrubin): https://t.co/IUoSnXaNWW

[Joachim Schork @JoachimSchork]

Did you know you can calculate the exact sample size you need before you even start your study? A sample size calculation — also called a power analysis — helps you determine the optimal number of observations for your statistical analysis. It ensures your study is large enough to detect meaningful effects, but not so large that you waste resources.

Key advantages of performing a power analysis:

✔️ Avoid underpowered studies that might miss real effects
✔️ Save time and costs by avoiding unnecessarily large samples
✔️ Tailor your sample size to the effect size you care about detecting
✔️ Choose your desired confidence level and statistical power for robust results
✔️ Works for a wide range of statistical tests, from t‑tests to ANOVA and regression
✔️ Supported by many free R packages, such as pwr

The image shows on the left side how the required sample size changes depending on the expected effect size — smaller effects require much larger samples. On the right side, you see an example of a calculated sample size for comparing two groups using a t-test, showing exactly how many participants are needed per group for the desired confidence level and statistical power.

Sign up for my newsletter to get more practical tips on statistics, data science, R, and Python. Check out this link for more details: https://t.co/X93SeCe0rb

#pythonprogramming #programmer #DataAnalytics #RStats #Python #datastructure #DataAnalytics

[Larry Madowo @LarryMadowo]

Ugandans now need written permission from President Museveni’s son Muhoozi Kainerugaba to import Starlink equipment.

The ban comes just 24 days before January’s general election. The government switched off the internet during the 2021 polls

[IMF @IMFNews]

Civilizations rise when they borrow and blend ideas, and fall when they harden into orthodoxy. In F&D magazine, Johan Norberg traces how openness to trade and thought made Athens, Baghdad, and others flourish..https://t.co/TULeIhA188

[John B. Holbein @JohnHolbein1]

"Sources of Evidence for Evidence-based Policymaking: Journals, Articles and Scholarly Structures in the Economic Report of the President 2010-2025"

https://t.co/MATAZgKQCF

[John B. Holbein @JohnHolbein1]

What economics journals are cited the most in the Economic Report of the President?

1. AER
2. QJE
3. The Journal of Economic Perspectives
4. Journal of Political Economy
5. Journal of Public Economics
6. RESTAT
7. Heath Affairs
8. Brookings Papers on Economic Activity
9. American Economic Journal: Economic Policy
10. Journal of Labor Economics

[The Economic Misfit @EconomicMisfit]

2026 Africa Summer School in Economics (AFSS-2026) Cairo, Egypt

Application Deadline: January 7, 2026

Limited funding available to cover travel expenses, accommodation, registration fees

https://t.co/SNL2cCSmCe

[isaac Samuel @rhaplord]

The medieval church of Bangnarti, Sudan.
https://t.co/g4i4Qa1fxL

[Mzilikazi wa Afrika @IamMzilikazi]

INGOMA: One good thing about music, when it hits you, you feel no pain. #GoodMusic✊🏿 17

[The Economic Misfit @EconomicMisfit]

📢 Call for Applications – Claude Ake Visiting Chair 2026

For social scientists at African universities working on social justice, democracy, human rights, conflict, and development.

Deadline: 1 February 2026

More info: https://t.co/xNaljNFFhU

[Constantine Manda @msisiri]

@EconomicMisfit @UCIrvine @APSAtweets Thank you very much!

[The Economic Misfit @EconomicMisfit]

🎉 Congratulations to Constantine Manda @msisiri (@UCIrvine) for receiving a 2025 APSA @APSAtweets Advancing Research Grant!

Read more: https://t.co/XOrh1ITMge

Personal Website: https://t.co/9kQJaSxTCT

#PoliticalScience #AfricanStudies #EarlyCareerScholars

[Constantine Manda @msisiri]

Thank you to the selection committee and ⁦@APSAMeetings⁩ for this honor. I feel incredibly privileged in my career. https://t.co/MRF9aYOp2c