Global institutional investors are worried that anti-trade movements around the world will hurt international investment prospects, says a survey of 70 institutional investment leaders released Friday.

At the same time, they see the United States as the leader in the world economy, and more of them predict positive results from a Hillary Clinton victory than a Donald Trump win.

Two public relations firms, Dukas Linden Public Relations based in New York City and MHP Communications based in London, surveyed 70 CEOs and portfolio managers of multi-billion-dollar investment firms and research analysts for leading broker-dealers in the U.S., the U.K., Europe and Asia for the survey, which it called a pre-election snap poll.

Forty-seven percent of the respondents expect their firms to perform better in the year ahead than in the previous 12 months; 39 percent felt performance would stay the same, while just 14 percent anticipated lower levels of performance, the firms said.

However, three-fourths of the respondents said they are concerned about the impact of current anti-trade populist political movements in the United States and Europe and the possible disruption to markets worldwide. They were also worried about a significant cyber-attack on the financial system, increased terrorist activity, additional European Union departures and sovereign debt crises.

Fifty-three percent of respondents see the U.S. as the region most likely to deliver the best economic performance in the next 12 months. Asia, excluding China, and emerging markets were tied in second place with 14 percent each.

At the same time, 43 percent of the respondents felt that Hillary Clinton is the candidate whose policies would be most beneficial for growth prospects in the U.S., while 18 percent said the same for Donald Trump.