City's meteoric recent rise from mid-table strugglers to Premier League champions has been aided by heavy investment from the club's mega-rich owner Sheikh Mansour.
However, Soriano is keen for the Etihad Stadium outfit to shed their reputation for big spending and start bringing players through the academy, much like his former club.
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"In 2003 we did a study at Barcelona. For each player landed in the first team from the 'cantera' there was an average cost of £2m. Nothing if you think the current costs.
"Even at a age of five years you should get the style of the club, then the rewards will come.
"Our problem is to find players stronger then ours. It's not easy. There are rumors associating them [Stevan Jovetic and Erik Lamela] to City, but I never comment on market rumours
"In the last three years there have been losses of £200m, then of £100m and now there is a 'red' of £50m.
"But we also have just invested £150 million for the structures of the youth sector. It's a fantastic project, focusing on financial sustainability."
Roberto Mancini's future at the club has come under intense scrutiny this season with City currently 15 points behind league leaders Manchester United, but Soriano has given his backing to the Italian.
He added: "He is a champion, I do not add more. Anyway, it is not easy to win back any league, especially in the Premier League."