If I want to describe two financial investments that are mutually beneficial, that is, the first investment increases the value of the second, while the second increases the value of the first, what single word can I use in the phrase "reciprocating ______".
It would be the opposite of devaluation, I guess, but somehow no one ever got around to making "envaluation" a word. "Mutally beneficial" doesn't work because it's not specifically pecuniary.
Edit: It's to be used in a heading, so I'm hoping for an "action thing", or, as I just learned, a deverbal noun [Wikipedia]. Like the noun attack from the verb attack, except specifically and solely pecuniary.