I found this article in the Guardian by Cory Doctorow interesting. Basically it refers to research noting that people in “poorer” (that’d be in $, not other factors) countries pirate items like software simply because they cannot afford the locally charged price. Cory suggests to tie pricing to the local cost of living.
None of that is really new, I did this for a software product I developed over 20 years ago. What I find interesting is that a) there has been research and b) it’s discussed in a well respected newspaper.