The metric used was "number of paper published". If the results of research are being published, I wonder if it matters where the research was done? Everyone gets the benefit, just by reading the results.(A few commenters on TFA pointed out that quantity of papers != quality of research. They may be right. It's possible even that quantity of papers != quantity of research ...)
It may not matter where any particular research is done, but it matters how much research you do.And both equations in parentheses are probably true.