I share economic insights, research findings, and reflections on energy, natural resources, technology, and sustainability.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 37 | Founded | a year ago | Last Issue | 3 days ago |
| Active | |||||
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maheletgfikru.substack.comLatest Issues
Is Grad School Worth It? Start With Opportunity Cost, Not the Application Essay
Short answer: Graduate school is worth it when what it gives you outweighs what you give up to attend. Economists call what you give up the opportunity cost, and it differs for each person. So the question is not "Is grad school worth it?"...
Is AI Making Students Lazy Thinkers? Only When It Skips the Thinking Step
Short answer: AI does not make people lazy thinkers by itself. The harm comes when AI does the reasoning that a task was designed to build. When AI handles routine work or explains and checks your thinking, it can support learning. When it...
The Age of Content Scarcity Is Over. Judgment Is What’s Scarce Now.
Short answer: When AI makes information free, its value moves to the skill that sits next to it: judgment. Judgment means deciding what matters, noticing what is missing, seeing what is wrong, and explaining why. AI can produce content at a...
Economists on Substack: A Living Directory of Named Economists Who Write in Public
Last updated: October 1, 2026. Compiled by Mahelet G. Fikru, Professor at Missouri University of Science and Technology.
Quick answer
Economists writing on Substack under their real names include Nobel laureate Paul Krugman, Justin Wo...
The U.S. Needs Better Rare Earth Policy Tools Than a National Champion Approach
The U.S. has correctly diagnosed its rare earth problems: a lack of midstream processing and concentrated sourcing. The nation has moved with real speed and real money to address them. The proposed solution is to create a national champion...
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Authors
The writers behind this newsletter.
Professor of Economics at Missouri University of Science and Technology. I write about energy transitions, critical minerals, AI, and how technology reshapes markets and society.
I’m a writer who explores life on this changing planet. As an award-winning environmental journalist and creative writer, I focus on aquatic ecosystems, especially the deep sea.
Map Before Machine™ | Analog-First AI. ✍️ | Not AI-made... Soul-made. \ud83c\udf1f
I write about mining and rare earth. I care about earth and human being.
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