The study found that only 9% of employees chose to leave pension schemes after being automatically enrolled.
Before auto-enrolment's introduction a year ago the Government had predicted that a third might leave.
The study found tough economic conditions have triggered a mood of financial "stoicism", boosting a chance of success for the Government's aim of having every worker in the UK paying into a pension scheme by 2018.
Since the introduction of the scheme, a year ago tomorrow, around 1.6 million workers have been automatically enrolled into a workplace pension scheme.
Quiet revolution
Three-fifths (61%) of people, who are yet to be placed in a workplace pension, said they plan to stay in it, showing a sharp increase from less than half (47%) in 2011.
Just under one-fifth (18%) of consumers disagree with the idea of auto-enrolment, down from 27% in 2011.
Pensions minister Steve Webb welcomed the news. "Over the past year we have instigated a quiet revolution that has heralded the biggest change to pensions in a century," he said.
Of the workers questioned who have now been placed in a workplace pension, 51% of those who had stayed with it said they felt it was time to start saving for retirement.
