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PPP Series • Paper 5

Speaking in Decades

How institutional time-horizons shape infrastructure outcomes. The language of long-term thinking and why most institutions cannot speak it.

SDGs:
9
11
16
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Paper Overview Video

The 60-Second Version

Institutions think in the time-horizons they're structured to reward. Most cannot 'speak in decades' because nothing in their architecture rewards it.

Infrastructure operates on 30-50 year timescales, but is governed by institutions optimising for quarters, election cycles, and career advancement. The mismatch isn't cognitive—it's structural. You cannot think long-term in a short-term structure.

This paper examines how different institutional time-horizons create different decision biases—and why regenerative infrastructure requires governance structures that can genuinely 'speak in decades'.

The Time Horizon Spectrum

HorizonYearsFocusDecision Bias
Quarterly0.25Financial performanceShort-term optimisation
Electoral4-5Political survivalVisible achievements
Career2-3Personal advancementRisk aversion
Infrastructure30-50System performanceLifecycle value
Generational50+Intergenerational equityLegacy creation

Infrastructure requires 'Infrastructure' or 'Generational' horizons, but is governed by institutions operating at 'Quarterly', 'Electoral', or 'Career' horizons.

Part of the PPP Series

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Public Capital Continuity

Designing institutions that can genuinely speak in decades.

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