The best replacement for discounting is compounding.

The best alternatives to discounting are rated as following:
★★★★★  compounding
★  augmenting
★  factoring
★  negotiation

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Speaking about discounting, one probably shouldn't forget about ois.

Other search terms related to discounting and their ratings are:
★★★★★ ois
★★★★ recourse
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Google Trends

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discounting
compounding
augmenting