"It is an assumption that makes sense," Bollore said in an interview on the sidelines of Morgan Stanley's annual Tech, Media and Telecom (TMT) conference in Barcelona. "It would be a development project rather than a cost saving project," he added.
"Big content could bring a lot to advertising and advertising could bring a lot to Vivendi's entertainment world," Bollore said.
Bollore insisted there were no formal talks currently between Vivendi and Havas.
He declined to comment on the form or timetable for such a deal, even though some investors and analysts are continuing to speculate on a tie-up, with Exane BNP Paribas publishing a note on Friday which saw a Vivendi/Havas merger as a possibility for the second quarter of 2017.
Havas, the world's fifth-largest advertising company, is 60 percent-owned by Bollore's father, French tycoon Vincent Bollore. Vincent Bollore owns a stake of more than 20 percent in Vivendi, and is also Vivendi chairman.
Vincent Bollore has repeatedly said that Vivendi and Havas, should work more closely together, with a potential merger down the road.
"Never say never", Vivendi's chief executive Arnaud de Puyfontaine said on Wednesday, in a response to a question on a possible merger with Havas.
Asked about the potential risk of a conflict of interest in a Havas-Vivendi tie-up, Yannick Bollore said that the risk existed, but that it was "minimal".
Vivendi accounts for 0.05 percent of Havas' revenues and Havas' clients represent less than 1 percent of Vivendi's revenues, added Yannick Bollore, who sits on Vivendi's board.
(Reporting by Mathieu Rosemain, Editing by Dominique Vidalon)
By Mathieu Rosemain
