Nearly 40 percent of colleges have seen a decline in applications from foreign students, according to a survey by the American Association of Collegiate Registrars. The biggest decline is in applications from West Asia. Many officials cited worries among students about Trump's immigration policies. Graduate schools appear to be feeling the worst pinch, with nearly half reporting drops. The numbers are provoking anxiety in some programs that rely on international students, who bring USD32 billion a year into the economy. International enrollment at US colleges has been on the rise over the past decade, and for the first time exceeded one million last year. Despite the increase, the movement of students from one country to another is sensitive to fluctuations tied to political and economic forces. Many schools, including New York University, University of Southern California and Northeastern University, reported their international numbers were up. The dip coincides with the travel ban announced by the Trump administration.