premium

premium:
貼水, 酬庸, 獎勵, 仲介費 == commission fee?

溢價
issue of bonds at a premium 溢價發行債券

保險費
premium rebate 保險費回扣


risk premium, riskpremium
historical "equity risk premium"

[ref] http://cn.wordmind.com/ecmaster-cgi/Csearch.cgi?kwd=premium&bool=and&word=im