Witness every company that got disrupted from existence, because the thing they were doing was more profitable.
If you cut r&d that's a saving that a manager is rewarded for. The losses down the line are borne by others.
I worked for a camera company that made boatloads of cash from point-and-shoot cameras. That entire business was pretty much turned into chum by smartphones. I remember them refusing to even take the iPhone seriously, when it was announced. They took a serious hit, but seem to be recovering.
I have personal experience in the field (27 years), and met and worked with the folks involved, so I know it's good info. I'm not especially interested in hunting around for stuff that basically is a "lite" version of my personal experience.
I don’t really get specific about my employer, and I suspect that the folks at Kodak, wouldn’t be thrilled about me writing about them.
There’s a fair bit of press out there, anyway. Not too hard to find corroborating information.