Many functional language advocates make a few surprising assertions about them:
- functional languages code is significantly less buggy than otherwise
- functional languages code is significantly faster than otherwise in parallel scenarios
- functional languages code is significantly cheaper to write than otherwise
I am only able to find a lot of speculation on the matter but I can't find hard data. Has anyone actually measured it?
I'd only like to see answers citing peer-reviewed material from reputable sources, such as IEEE or ACM. I am not interested in any logical or theoretical explanation, but only in rigorous measurements on real world projects/code bases.