I want to know the answer to the following question:
Who refused to lower the profit margins on Mac computers in 1989?
All the background I'm provided with is that "Notwithstanding these technical and commercial successes on the Macintosh platform, their systems remained fairly expensive, making them less competitive in light of the falling costs of components that made IBM PC compatibles cheaper and accelerated their adoption.". Is that enough to answer the question?
Answer: no