I'm looking for some guidance on how to describe an industry according to it's revenue, and I'm seeking clarity around the correct usage of assigning a dollar value to an industry.
First and foremost, does the description:
Ten billion dollar industry
Refer specifically to the annual revenue of an industry? Or is it ambiguously used to describe the annual profit, annual investment or even capital value - and thus requiring additional context to define the statement?
Secondly, if I were to write it numerically, which is more readable?
- $10 billion industry
- 10 billion dollar industry
- $10 billion dollar industry
I feel like:
- is grammatically correct, but awkward to parse because the leading dollar sign requires the insertion of the absent word "dollar", two words later.
- is likewise grammatically correct, but more readily parsed.
- is not grammatically correct because either the dollar sign or the word "dollar" is redundant.
I have seen 3 used from time-to-time - would it be considered acceptable use, or is it simply a common mistake, like "PIN number" Also, I'm happy to accept guidance on correct hyphenation!