But what Yahoo and Google have not made clear is what their plans will be should the antitrust division of the Department of Justice, or a multi-state task force, announce plans to challenge the deal by filing a lawsuit to block it, or should regulators seek a temporary or permanent injunction. The companies, for example, could demonstrate their resolve and still move forward with the partnership, despite knowing it would wrap them in legal wrangling with regulators.
Google, however, said in a statement:
"When we announced our deal with Yahoo we agreed to give the Department of Justice several months to review the deal before we began implementing it, and we continue to cooperate with regulators as that process continues. Ultimately we have confidence that they'll be able to conduct their review within that time period and allow us to move forward."
And on Tuesday, Google's chief economist Hal Varian disputed reports of potentially higher advertising costs should his company do its advertising search partnership with Yahoo in his blog.