While some of that growth was in Social Security and disability benefits as the population aged, the majority resulted from payments to people continuing to suffer from the recession, said Mr. Zandi. Unemployment benefits, including emergency and extended benefits, are more than three times their prerecession level, he said. The nearly 20 percent of personal income now provided by the government is close to a record high.

Approved by Congress last December, the final extension of jobless benefits — for a maximum of 99 weeks for each unemployed person — is scheduled to conclude at the end of this year. A handful of states, like Wisconsin and Arizona, have already cut off weeks 80 through 99 for their residents. Meanwhile, more of the long-term unemployed are bumping up against the 99-week limit.

Consumers account for an estimated 60 to 70 percent of the country’s economic activity, but two years into the official recovery, businesses are still complaining that people simply are not spending enough.

“Regardless of why people have less money to spend, it affects all retailers in all industries,” said Michael Siemienas, spokesman for SuperValu, which operates grocery chains including Cub Foods, Shop ’n Save and Save-A-Lot. Mr. Siemienas said that the number of SuperValu’s customers using electronic benefit transfers to pay bills had grown over the last year.

Because benefit payments tend to be spent right away to cover basic needs like food and rent, they provide a direct boost to consumer spending. In a study for the Labor Department, Wayne Vroman, an economist at the Urban Institute, estimated that every $1 paid in jobless benefits generated as much as $2 in the economy.

For many of the nearly 7.5 million people collecting unemployment benefits, those payments are keeping them afloat. Laura Metz, 42, was laid off from a clerical job paying $15.30 an hour at a home health care provider near her home in Commerce, Mich., nearly 15 months ago. She has been collecting $362 a week in unemployment insurance and about $50 a month in food stamps.

That covers the basics. But Ms. Metz stopped making her mortgage payments last year on the modest home she shares with her 19-year-old son. A program that allowed her to make a lower monthly payment has expired, and she is waiting to see if the lender will modify her loan. She can no longer make her student loan payments for her bachelor’s degree or master’s in business administration, and she has downgraded her Internet and cable service and cut back on car trips and snacks.