I found something... a report (funded by a UK university group) cited by a House of Commons report says that
One other point mentioned which I think is important is that:
See here: https://commonslibrary.parliament.u...value has increased,benefits of £37.4 billion.
international students starting in 2021/22 would bring economic benefits to the UK of £41.9 billion, have costs to the UK of £4.4 billion, and hence net economic benefits of £37.4 billion.
One other point mentioned which I think is important is that:
Soft power shouldn't be undervalued.over one-quarter of the world’s countries (58) are headed by someone educated in the UK
See here: https://commonslibrary.parliament.u...value has increased,benefits of £37.4 billion.