Where could I find/read about studies about the influence in English of the lack of regulatory bodies of its use and lexicon?
It is easy to google and find long arguments on the topic. I am interested in studies that at least attempt to be systematic or rather scientific (to the extent this is possible in this case).
1.1. Your personal opinion is not what is being asked unless it comes from an study. In that case it is prefered that you point to where can I find such study.
- I expect to find in them comparison with languages like Spanish and French that have their language academies.
- I honestly expect to find in them conclusions pointing to benefits, as that is my personal opinion, but I am open to what the studies could say. As pointed out in the comments it is to be expected a serious study may not be able to label as benefit any such influence.
I expect the studies to particularly look at the influence in:
-) the speed of evolution of the language.
-) the breadth of the English lexicon.