UK - Auto-enrolment into workplace pensions will benefit 95% of the working population and 70% can expect to get back twice what they put in, the government has said.
The report looked at the impact on those making savings into a defined contribution pension after 2012 with an employer contribution.
The results showed for more than 95% the expected improvement is greater than the cost of their contributions, even after taking inflation into account. More than 70% of savers can expect to get back more than twice what they put in, even after taking inflation into account.
Pensions minister Rosie Winterton said: "This report makes clear that most people can expect their savings to make them better off in retirement.
"Rather than putting your money under a mattress, sensible saving is about making your money work harder for you, whether it is in a pension or in other ways. Even after inflation, virtually everyone can expect to get back more than they put away."
She added: "The research confirms that we are absolutely right in moving forward with the recommendations of the Turner Commission and the decision to introduce auto-enrolment in 2012."
Pensions Policy Institute director Niki Cleal said the government analysis needs "careful interpretation".
She said: "The government's findings are broadly consistent with previous PPI research in this area, for example, the government finds that as a result of the pension reforms younger employees are more likely to receive higher paybacks from pension saving, on average, than older employees."
Cleal said the report confirmed that for most people the interaction with means-tested benefits was not a barrier to saving.
She said: "However, it also shows that a minority of people will not get back the value of their own contributions after taking account of inflation due to the interaction of their saving with means-tested benefits."
Cleal was clear that this could have a "detrimental impact" on wider public confidence in the pension system.
"The government's conclusion that most people can expect to be better off in retirement by saving, with the majority getting back more than double what they save needs careful interpretation.
"This finding is based on a specific set of assumptions which may, or may not, transpire in the real world. All individuals who save in money purchase pension schemes are exposed to the risk that the value of their pension pot can go down as well as up."
Trades Union Congress general secretary Brendan Barber said the research should "close down" the argument over means-tested benefits.
"Talk of mis-selling the new pensions has always been a strange use of language. After today's report it will be downright irresponsible.
"Of course there are always risks with any form of saving, but it is now as clear as possible that the vast majority people will be better off saving in a pension, particularly when you add the certainty of having your own pension pot against the vagaries of future means-tested benefits."
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