You might think that with the economy improving and with so much technology available for telecommuting, that more workers would stay home more when they get sick, but that doesn’t seem to be the case, according to a new survey from Staples Inc., the Framingham-based office supply giant.

Nearly 80 percent of the survey’s respondents said they come to work even when sick, an increase of 20 percent from a year ago. (This is the third year that Staples has conducted its “Flu Season Survey.”)