"According to the paper (page 13), they only look at incomes between the 10th and 90th percentiles. That's why they cut off at $128,000 for US residents"
In my opinion, ignoring data from the top 10% earners is the perfect way to get plots that seem to disprove a paradox that states "Become rich enough, and a bigger paycheque no longer leads to more happiness".
And that's why the cap for Nigeria is at $8k...
In fact, as someone else has commented: https://news.ycombinator.com/item?id=7047548
"According to the paper (page 13), they only look at incomes between the 10th and 90th percentiles. That's why they cut off at $128,000 for US residents"
In my opinion, ignoring data from the top 10% earners is the perfect way to get plots that seem to disprove a paradox that states "Become rich enough, and a bigger paycheque no longer leads to more happiness".