Yahoo plans to expand its online display ad business in Southeast Asian markets such as Indonesia and Vietnam, said Bartz.
Steve Ballmer, chief executive of Microsoft said last week that Microsoft's 10-year search engine partnership with Yahoo could extend beyond the US.
Steve Ballmer said it would be introduced elsewhere in the world, once it gets regulatory approval.
The deal, under which Microsoft's Bing search engine will be used for Yahoo searches and Yahoo will sell premium advertising for both companies, is yet to be approved by US and European regulators.
The deal was announced in July and was originally scheduled to be completed by the end of October, but Yahoo and Microsoft asked for more time to finalise the details.