Donald Trump's proposed ban on Muslims entering the United States could cost the country billions each year, according to a new study.

Council on Foreign Relations researchers project that banning Muslims from entering the U.S. could cost upwards of $71 billion in travel, tourism and education spending each year.

The ban would damage communities and services dependent on tourism and could cost between 50,000 and 135,000 jobs, according to the research.

The departure of Muslim international students from American colleges and universities could cost $4.6 billion, roughly 15 percent of foreign student spending in the United States.

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