It's also equally lazy for you to demand such an in depth and thorough argument and sources when you can pop into a search browser and do some fact checking yourself. No one owes you anything. This is a discussion board, not a dissertation defense.
FWIW, the paper "Lifting the Veil: The Benefits of Cost Transparency" doesn't mention confounding factors like weather or temperature, only the possibility of revealing labor costs. "Fact checking" this study would require reproducing it, not searching the web.