I do know that Kodak was late in the digital game and that their digital cameras are some of the worst. That might explain why they collapsed. Nikon didn’t. Canon didn’t.
Kodak had a corporate culture with an aversion to digital because it threatened their cash cow at the time. So, they walled themselves off, circled the wagons and tried to protect their turf. Being so huge, hidebound and bureaucratic only served to slow their response even more, and to garble it when they actually did attempt to respond.