Happy Planet Index (HPI) adalah suatu indeks dampak kesejahteraan manusia dan lingkungan yang diperkenalkan oleh New Economics Foundation (NEF) pada Juli 2006.
Pranala luar
- The Happy Planet Index Diarsipkan 2009-09-26 di Wayback Machine.
- Situs resmi dari New Economics Foundation Diarsipkan 2021-03-17 di Wayback Machine.
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