Norvig [1] commented on two productivity studies by Prechelt [2] and Garret [3]. The results for the productivity of the languages isn't immediately apparent, so I extracted the relevant information as a "productivity summary" [4]. The results strongly indicate that programmers who solve a problem with fewer lines of code are more productive, irrespective of the language used. Thus languages which are more succinct could be said to be more productive.
For entertainment purposes, I solved the given problem in Python; it took me 1 hour 10 minutes, with 31 lines of code. I spent 10 minutes reading the problem, and 40 minutes fixing mistakes that I had made due to not reading the problem carefully enough. There is a lesson here...
(Productivity Summary) (My Solution)