Kyle Harrison
← Portfolio Ideas

Capital Allocation

How money shapes what gets built

The mechanisms through which capital flows determine what exists in the world — from venture backing of startups to public market investment to debt structures to government spending. Encompasses the psychology of investing (hype cycles, groupthink, bubbles), frameworks for calculating ROI across different asset classes, and the comparative effectiveness of different capital deployment mechanisms.

118 Essays
29 Books
488 Saved
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Will Manidis @WillManidis

when i was 19, a VC i met through my college told me you “never had to worry about an investor’s ethics: if they had poor ethics they’d be run out of the industry.” he went on to comprehensively falsify his own theory. you can’t blame a16z for taking a victory lap when it works **Quoting David Haber (@dhaber, a16z) · 2026-09-03 · [View on X](https://x.com/dhaber/status/2095529535353557282):** > Careers are long. And you never know how life re-intersects… > > The karmic boomerang is real. For good (and for bad). Always why you should do the right thing!

2026-09-04
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Ruben @rdominguezibar

5% of VCs generate 90% of venture profits 🤯 @IlyaStrebulaev, a Stanford GSB professor, built a ranking to find them His study with Blake Jackson covers 230,000+ investments, 13,000 VCs and 5,000 firms across 30 years. Zero editorial judgment, no self-reported numbers What it corrects for: 1️⃣ Private valuations discounted, since unicorn marks run ~50% overstated 2️⃣ Dilution tracked round by round 3️⃣ Net profit after cost, so spraying checks earns nothing 4️⃣ Time decay, with a 3-year half-life on every result The Midas List correlation with his ranking: 0.27 SV Angel backed 139 unicorns and ranks 31st. Thrive backed 47 and ranks 8th Does your lead sit in that 5%?

Ruben — image
Ruben — image
Sep 2, 2026
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Tigerflow @tigerfl0w

A hedge fund manager put a jar of 1,776 jelly beans in front of a room at Google and proved in two rounds why most investors will always lose money. for free. His name is Joel Greenblatt. Gotham Capital. 50% a year for a decade. he asked the room to guess how many jelly beans were in the jar. First round: everyone wrote their guess silently. no talking. no looking around. the average was 1,771. five off. almost perfect. Second round: people said their guesses out loud. heard each other. adjusted. the average collapsed to 850. same room. same jar. the only thing that changed was influence. He told the room: the second guess is the stock market. everyone knows what they just read in the paper. what the guy next to them said. what they saw in the news. the cold independent guess was better. that is not how the market works. but that is where the opportunity is. Then he showed 20 years of data. the cheapest 20% of stocks averaged 38% a year. the most expensive averaged the least. the strategy is simple. the reason it still works is that people are still crazy. and they always will be. 55 minutes. one jar. still free.

Video poster — Joel Greenblatt's talk at Google
Joel Greenblatt's 55-minute talk at Google (480x270, archived copy)
2026-08-20