The question of "pride" in relation to the employee/employer relationship comes up a lot in internal surveys, in my experience. This paper seems to seek to take a fairly technical approach to understanding the importance and impact.
It does raise the more general question though: what does it really mean to be proud of your employer?
"The Agile Manifesto paints an alluring picture of workplace democracy. The problem is, it’s almost always implemented in workplaces devoted to the bottom line, not to workers’ well-being. Sometimes those priorities align; the manifesto makes a strong case that businesses’ products can be strengthened by worker autonomy. But they’re just as likely to conflict, as when a project manager is caught between a promise to a client and the developers’ own priorities."
Pretty good article that covers many of the concerns I have with "Agile".