Donald Trump may better serve the U.S. economy than Hillary Clinton as president, as the presumptive Republican nominee is more likely to introduce fiscal stimulus, a well-known market strategist told CNBC on Wednesday.

Bob Janjuah, senior independent client adviser at Nomura, said Trump was more likely to cut taxes and take other measures to boost anemic job creation and economic growth in the U.S. Clinton, however, would be more likely to stick to the status quo and with a Republican-led Congress, would struggle to introduce reforms, he added.

"In the U.S. we have not had credible fiscal policy since (2008)," Janjuah told CNBC in London.

"Now don't laugh, but if Mr. Trump is elected president, as a Republican, and you have a Republican Congress, you might get a fiscal package going. But if Mrs. Clinton is elected president and you have a Republican Congress — which is what you are going to have for another two years give or take — I don't think they are going to get any fiscal policy in the U.S.," he later added.