"If the policy does not have a good amount of happiness index, if the policy is not every environment friendly, if the policy will not be able to ensure that it will result in the well-being of Bhutanese, that policy will never be approved in the country."

They measure nine key areas of happiness every five years -- psychological well-being, health, education, good governance, ecology, time use, community vitality, culture and living standards.

Meet the smoking-free, carbon-negative country that passes no law unless it improves citizens' well-being