Company Culture Predicts ROI, Delays, Metascore, and More (Game Outcomes Project)
gamasutra.com
gamasutra.com
The first part is here: http://gamasutra.com/blogs/PaulTozour/20141216/232023/The_Ga...
The most interesting result from part 1 was that the effect of different production methodologies (Scrum, Agile, Waterfall, etc) was nearly indistinguishable.