NEW YORK (TheStreet) -- Mergers and acquisitions tend to slow when the Republican and Democratic parties each nominate a non-incumbent candidate as is the case this presidential election year, Centerview Partner co-founder Blair Effron said today on Bloomberg TV's "Bloomberg Markets. 

It's not just because companies want to see what kind of policies will be put in place in the U.S. but globally as well, Effron said. 

"Fundamentally you are going to advise a client around M&A that you'd rather wait for a little bit of certainty before you make such a strategic transformational decision," he said.

M&A's are expected to slow significantly after Labor Day, he noted. 

"I think you are already telling clients that if it doesn't need to happen tomorrow for some sort of particular dynamic, sit back, let's see what the landscape looks like and go from there," Effron said. 

The 2008 presidential election was a bit different because the economy was in a difficult situation but this election has much more stability and certainty, he added.