The English website The Lawyer has just published my new article Putting an End to Endeavours Nonsense. (Go here; free registration required.)
I’d like this article to prompt some discussion, but the evidence I lay out is so clear-cut, I don’t think there’s any room for debate. Game over, case closed.
The article mentions only briefly how to handle endeavours (or, preferably, efforts) provisions in a way that limits risk. For a detailed discussion of the subject, see the fourth edition of A Manual of Style for Contract Drafting.