Liberal Democrat leader Nick Clegg has appointed Barnardo's chief executive Martin Narey to lead a commission on social mobility for the party.
Narey, who is also chair of the End Child Poverty Coalition, has been tasked with investigating why the UK has lower levels of social mobility than most other Western democracies, and why it has declined over recent decades.
Nick Clegg said: "In 2007, a child born into deprivaion is more likely to inherit his or her parents' disadvantage than at any time in our recent past. I want to know why it is that Britain's low levels of social mobility compare unfavourably with almost every other developed nation."
Martin Narey said the evidence of declining social mobility was "particularly alarming" because of the potential for a child's destiny to be determined at birth.
The commission will consider whether significant increases in public spending under the Labour government have helped social mobility - or are likely to do so in future - and what policy changes, within sensible spending limits, can promote greater life chances for poorer people.
The commission is due to report by the end of 2008.
Related articles
Children's Plan: Commitment to end child poverty restated
Save the Child lead child poverty march on Downing Street
Essential information on poverty
More information
MPs urge action to force schools to welcome looked-after children
29 July 2004
A third of disabled children not treated fairly at school
12 March 2003
news analysis of government crack down on disruptive pupils
31 January 2002
Skills for Care unveils study of direct payment users as employers
Tributes flow in for Ray Wyre after death at 56
640,000 council staff to strike on 16 and 17 July
Details of government consultations
04 July 2008
Government Legislation
04 July 2008
Private Member Bills
04 July 2008