is the relation between life expectancy and GDP per head i.e. declining. But
is the relation between inequality and life expectancy.
So Paul Stoneman asks a nice point. He can see that making a poor person richer might riase their life expectancy. But the logic that inequality matters says this: making a rich person poorer, raises the life expectancy of the poor person. This seems to me a substantial objection to the theory that inequality determines life expectancy and health.