IMF/World Bank research identifies roughly 15% of GDP in tax revenue as an important state-capacity reference threshold,
Source
IMF/World Bank — https://www.imf.org/en/publications/policy-papers/issues/2026/04/27/imf-wbg-background-paper-for-g-7-principles-for-effective-and-efficient-support-for-575646. Verified in source set / retroactive normalization pending.
What it proves
Taxation supports state capacity, services and the social contract.
How to deploy: Use IMF/World Bank research identifies roughly 15% of GDP in tax revenue as an important state-capacity reference threshold, (IMF/World Bank research identifies roughly 15% of GDP in tax revenue as an important state-capacity reference threshold, not a magic universal target., 2026) to support the claim that Taxation supports state capacity, services and the social contract.
What it does not prove: 15% is an empirical regularity drawn from cross-country research on where state capacity becomes viable — the sources that publish it explicitly decline to call it a universal target, and countries clear it while still delivering weak services. Reaching it changes nothing on its own if over 80% of provincial spending is recurrent and district allocations track history rather than service gaps.
Memory hook: 15% of GDP → a capacity threshold observed in research, not a finish line
Rebuts the claim: "Once Pakistan reaches 15% of GDP in tax, the fiscal problem is solved" — the threshold is about capacity to spend, and spending quality is a separate failure.