Right, when the price of HIVE hikes, less HIVE coins are distributed; and when hikes vice versa
No. The pool remains the same - but people adjust their vote values quite a lot. I might give people a 100% vote today - but it would be rare if I had a 100 dollar vote. This means that they will effectively get less HIVE, but that Hive will be spread further. instead of on one 100% vote, I might do 5 20% votes. Five different posts will get rewarded.
Yes, I meant that, voting scale.