For those who are smarter with numbers than I am...

For airline partners...
ASSUMING:

1 - partner earning rates do not change
2 - one does not care about UA status - don't fly often or already made lifetime status

For example, SFO-HKG, it is about 7000 miles each way, 14,000 R/T.

For 1K, it means the breakeven is 14,000/11 = $1272 which is probably between an S and W fare in low season?

For regular member, it means the breakeven is 14,000/5 = $2800 which is probably a Q fare? (Don't know, never paid that much)

THEN

If I can get a ticket on a competitor AC or Asian carriers for less than the breakeven price and earn 100% miles, then why do UA?

For other partners - do we foresee the ratios of miles earned change? I especially wonder about Marriott vacation package....

Would UA raise the price of the miles to partners?

For compensation, how would our math change on what to select? How would UA's math change on what to offer?