"Negotiations around the 'fiscal cliff' will be challenging, and uncertainty can linger in the business community," said Harris.
A priority for the Democrats and Republicans after the election is to come together to reach a compromise by the end of December, he said.
Investors will be more cautious as economic growth could fall, he added.
The US economic growth rate was 2 percent in the third quarter, while unemployment stood at 7.9 percent in October.
Once the "fiscal cliff" is resolved, the US could see a better recovery due in part to a recovery in the housing market, Harris said.
The country's property market is showing signs of recovery and growth in the housing market is expected to return to about 2.5 percent by the end of 2013 and be back to 3 percent by 2014, he said.
Long Guoqiang, senior research fellow with the State Council Development Research Center, described Sino-US economic and trade ties as "by and large positive" during Obama's first term, and said the situation is likely to be sustained in his second term due to the "highly intertwined interests" of the two nations.
"Despite there being moves toward trade protectionism under the pressure of the financial crisis, the overall economic and trade ties between the two countries are pretty good. The two countries will move more in areas such as macro policy coordination and the establishment of multilateral mechanisms," said Long.
However, Li Daokui, director of the Center for China in the World Economy at Tsinghua University, voiced concern over the impact of Obama's re-election.
Landmark building should respect the public's feeling
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