By Jonathan Davies
Exiting the UK would harm the country's jobs market and economy, recruitment firm Manpower has said.
Manpower said the so-called 'Brexit' would lead to businesses investing less in jobs and would create "a vast amount of uncertainty and instability".
It also said that an EU exit would make it harder for British businesses to hire highly-skilled overseas workers.
Manpower's survey of more than 2,000 workers found that North England in particular was facing a "critical shortfall" in qualified workers.
"Our position on Europe is clear: leaving the EU would threaten jobs and harm Britain's prospects.
"At a time when we face serious skills shortages in key areas of the economy, that [an EU exit] could have a very negative effect on our economic health," said Manpower Solutions UK managing director James Hick.