The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 4 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Assertion Supported
Costco maintained standardized product markups of exactly 14 percent
“He explained how Costco maintained extremely low markups standardized around a 14% markup across the board.”
David Senra May 21, 2025 ▶ 39:46 Lessons from Jeff Bezos's Shareholder Letters
Assertion Supported
Costco Caps Product Markups at 15% Compared to 30% for Supermarkets
“Costco marked up its goods by no more than 15% above cost, while typical supermarket might markup prices up to 30%.”
David Senra Sep 26, 2024 ▶ 25:51 Nick & Zak’s Excellent Adventure: How Nick Sleep & Qais Zakaria Built Their Partnership
Assertion Supported
Senra: Price Club Squandered Seven-Year Lead Over Costco and Sam's Club
“The price company had a seven-year head start on Costco's and Sam's Club, but Costco and Sam's were expanding aggressively while Price Club remained tentative.”
David Senra Mar 22, 2024 ▶ 49:54 Sol Price: The Founder Who Taught Jim Sinegal, Sam Walton, Jeff Bezos, and Bernie Marcus
Assertion Supported
Senra: Costco's iconic $1.50 hot dog combo originated at Price Club
“Price Club was selling a hot dog and a can of soda for a dollar 50. The price of a Costco hot dog and soda has remained the same. A dollar 50.”
David Senra Mar 22, 2024 ▶ 46:33 Sol Price: The Founder Who Taught Jim Sinegal, Sam Walton, Jeff Bezos, and Bernie Marcus
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