More than half of employers have recruited someone who did not fit into their organisation or performed badly, according to new research.
A study by online site CareerBuilder found hiring the wrong person can have "serious" implications for companies.
The survey of thousands of managers in 10 countries, including hundreds in the UK, revealed those in Russia, Brazil and China were most likely to have been affected by a "bad hire".
One in four of those questioned in the UK said the problem had cost their company more than £50,000.
Matt Ferguson, chief executive of CareerBuilder, said: "Making a wrong decision regarding a hire can have several adverse consequences across an organisation.
"When you add up missed sales opportunities, strained client and employee relations, potential legal issues and resources to hire and train candidates, the cost can be considerable.
"Employers are taking longer to extend offers post-recession as they assess whether a candidate really is the best fit for the job and their company culture."