It rises roughly in line with absolute income per head, not relative income.

幸福感大体随着绝对人均收入而非相对收入而上升。

So it's not just about how much do you make in absolute, what's your absolute income level, but also about where are you relative to others around you?

因此，这不仅仅是关乎你的绝对收入水平，也是关于你相对于你周围的其他人来说处于什么位置？

Those sound like problems of poverty, but among wealthy, developed nations those health and social problems are actually more tightly linked to inequality between incomes than to absolute incomes.

这些听起来像是贫困问题， 但在富裕的发达国家中，这些健康和社会问题实际上与收入不平等的联系比与绝对收入的联系更紧密。