MAP: A Global Projection of Subjective Well-being, A Global Projection of Subjective Well-being: A Challenge to Positive Psychology? By Adrian G. White, University of Leicester, Psychtalk 56, 17-20
The unremarkable observation: people are--on average--happier in the Core than in the Gap.
Two caveats: oil-rich states inside the Gap tend to be happier; and Russia remains relatively unhappy, despite the boom.
The former is easy to explain: all trust-fund babies are happy---so to speak.
The latter is more the amputating nature of recent history: many in Russia feel oddly cut off from their known past--adrift and disconnected.
(Thanks: Al Anderson)