It costs less capital hence increase profit (or competitiveness) to keep this private. Retailers would do the same with their price if it was practical. Actuall

It costs less capital hence increase profit (or competitiveness) to keep this private. Retailers would do the same with their price if it was practical. Actually, with b2b sales it is exactly the case, prices are most often kept confidential. I'm not supporting the practice, I just don't see how it could be any different,unless you start forcing key actors in this system to disclose.