The demand for high-end jewelry is increasing as the economy gets better.
Would you tell me if my paraphrases are grammatical or not?
The economy getting better is providing for increasing the demand for high-end jewelry.
The economy getting better is making increase the demand for high-end jewelry.
The economy getting better is permitting of the demand for high-end jewelry increasing.
None of those are good. The last two are not grammatical.
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