Quid Pro Quo
Quid pro quo (From the Latin meaning "what for what") indicates a more-or-less equal exchange or substitution of goods or services. English speakers often use the term to mean "a favor for a favor" and the phrases with almost identical meaning include: "what for what", "give and take", "tit for tat", "this for that", and "you scratch my back, and I'll scratch yours".
Also See IS-DNA (Industry Solution)
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