Wilson's ground-breaking study in 1967 found that three key factors that determine any form of well-being are excellent health, quality education and high incomes.

The impact of climate change is, particularly, severe on individuals, who are economically disadvantaged and have less resources to adapt and cope with its effects.

One of the main arguments for the introduction of ZiG is curbing inflation and achieving exchange rate stability by anchoring the issuance of currency to foreign reserves and gold.