Q: If What I have lost., can we say that "What I do not have anymore."?

A: yes

Q: If The theory that only a monopolist can price discriminate is standard textbook fare, and it's borne out by a lot of observations., can we say that "The monopolist theory stems from many observations."?

A: yes

Q: If Today the Palais-Royal is a chic self-contained neighborhood of expensive apartments, shops, and restaurants., can we say that "The Palais-Royal is an expensive neighborhood."?

A: yes

Q: If That would, in effect, penalize companies for efficiency and productivity., can we say that "Companies would benefit from increased productivity."?

A:
no