It's still a Really Hard Problem. How would you account for LoC nuances, exactly? As I pointed out, the better the developer, the fewer LoC produced per "feat

It's still a Really Hard Problem. How would you account for LoC nuances, exactly? As I pointed out, the better the developer, the fewer LoC produced per "feature point" or however you want to measure it. So any analysis that doesn't take into account the nuances would be skewed against the expert developers. This would mean that, if the study purported to prove that two average programmers were more productive than an expert, I would have to take the conclusion with a grain of salt (or reject the analysis). But given that despite the disadvantage, experts were still shown to be more cost effective without pair programming? I don't see why we'd need to reject that conclusion.