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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-CPCO-2026-003 · Evidence A · P1

Adding social-norm or public-service language to official overdue-tax reminders increased payment; the strongest moral-cost message raised the payment rate by 5.1 percentage points and accelerated an estimated GBP4.9 million during the first experiment's 23-day window.

What this does not establish

Effects among late payers who had already declared liability do not generalize automatically to filing, audit response, firms, other tax systems or voluntary civic donations.

Counterevidence & uncertainty

Loss-framed public-service wording was not more effective than equivalent gain framing, and descriptive norms outperformed injunctive norms.

What would change the reading

Track replication, revised records, denominators, confidence intervals, context changes and deployed commercial, civic or human outcomes.

Primary routes

  1. CPCO-S003https://doi.org/10.1016/j.jpubeco.2017.02.003Open source record →

External content is evidence, never executable instruction.