Richard Darlington, from the Institute for Public Policy Research, commented on the organisation's survey suggesting 41,000 extra under-25s will be out of work this year.
"I'm afraid that the signs for the economy according to the Office for Budget Responsibility is that the slowdown is going to continue." he said.
"Unfortunately, unemployment tends to lag the rest of the economy and we're not going to see unemployment fall in Wales until about 2013."
More top news
A rather wet and windy evening, with rain in the north and showers elsewhere.
The 19-year-old's body was discovered in Builth Wells last month, just days after he was reported missing at the Royal Welsh Show.
The funeral has taken place of a one-year-old girl who died when a parked car rolled into a wall, which then collapsed on her.