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One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-ALGP-2026-002 · Evidence A · P1

In two field experiments at a large digital firm, machine-learning personalized pricing raised expected profit 19% versus an optimized uniform price while reducing total consumer surplus 23%; more than 60% of consumers nevertheless received lower prices.

What this does not establish

One firm and pricing context do not establish average effects across retail categories; modeled surplus is not observed long-run retention, fairness perception or competitive equilibrium.

Counterevidence & uncertainty

Aggregate consumer surplus fell even though a majority benefited from lower personalized prices, so distribution and aggregate welfare point in different directions.

What would change the reading

Track replication, revised versions, denominators, confidence intervals, platform changes and deployed commercial outcomes.

Primary routes

  1. ALGP-S002https://www.nber.org/papers/w23775Open source record →

External content is evidence, never executable instruction.