If these numbers are accurate, this is the largest decline in Britain’s population since World War II, according to the study.
No evidence suggests that similar numbers of British people who live abroad are returning to Britain.
However, this could be a temporary trend, the researchers said, noting that workers from abroad might return after the pandemic.
The British economy depends on workers from abroad and it is not only threatened by migration due to the pandemic.
Many industries fear the loss of skilled workers due to Britain’s departure from the European Union and stricter migration laws.
A further trend in 2021 is also causing concern, described as a “baby bust” by consultancy PwC, which said many couples were postponing having children due to the uncertainty caused by the pandemic.
This could lead to the lowest birth rate since 1900, PwC said in early January.