Despite the credit card hangover many shoppers will have on Dec. 26, nearly half of American consumers aren’t worried about racking up credit card debt this holiday season and 15 percent of shoppers plan to spend even more this year than they did in 2005, according to a survey released Tuesday by two leading consumer organizations.

“There are fairly high expectations for people having to spend to show how much they care,” said Stephen Brobeck, executive director of the Consumer Federation of America, which commissioned the study along with the Credit Union National Association.