The ANRS-EN12-VESPA 2003 survey interviewed a national, representative sample of the HIV-positive population attending hospital outpatient services. Conducting the survey in a hospital made it easier to identify and contact HIV-positive patients, but involved various biases : the role of the...

The concept of ??risk culture?? coined by Giddens offers an opportunity for communication of ideas between sociology and economics, because it assumes that today everyone is requested to behave as a ??homo oeconomicus??. But in general a new norm encounters resistance, it has to compromise with...