School is out, and Aaron Stallings, his junior year of high school behind him, wanders the air-conditioned cocoon of the Woodland Hills Mall in search of a job. Stallings, 18, says he has been looking for three months, burning gasoline to get to the mall, then filling out applications at stores selling skateboard T-shirts, beach sandals and baseball caps. He likes the idea of working amid the goods he covets. But so far, no offers.As the forces of economic downturn ripple widely across the United States, the job market of 2008 is shaping up as the weakest in more than half a century for teenagers looking for summer work, according to labour economists, government data and companies that hire young people.This deterioration is jeopardising what many experts consider a crucial beginning stage of working life, one that gives young people experience and confidence along with pocket money. Little more than one-third of the 16- to 19-year-olds in the US are likely to be employed this summer, the smallest share since the government began tracking teenage work in 1948, according to a research paper published by the Center for Labor Market Studies at Northeastern University in Boston. That is a sharp drop from the 45 percent level of teenage employment reached in 2000. The rates among minority young people have been particularly low, with only 21 percent of African-Americans and 31 percent of Hispanics from the ages of 16 to 19 employed last summer, according to the Labor Department.Retailers, a major source of summer jobs, are grappling with a loss of American spending power, causing some to pull back in hiring. Restaurants, also big employers of teenagers, are adding jobs at a slower pace than in previous summers, said Hudson Riehle, senior vice president for research at the National Restaurant Association in Washington.As older people stay in the work force longer and as experienced workers lose jobs at factories and offices, settling for lower-paying work in restaurants and retail, some teenagers are being squeezed out. “When you go into a recession, kids always get hit the hardest,” said Andrew Sum, an economist at the Center for Labor Market Studies who led the study on the summer job market. Economists debate the cause of this precipitous decline in teenage employment. Many contend that the drop is largely a favourable trend, reflecting a rising percentage of teenagers completing high school and going on to college, with some enrolling in summer academic programmes, leaving less time for work.