Its effect on happiness is significant—about half as much, from the nadir of middle age to the elderly peak, as that of unemployment.

它对幸福感的贡献相当大——甚至接近一半，从中年危机的低谷到年老的幸福顶峰，这段时间它带来的幸福感甚至可以抵消失业带来的负效应。