This survey is part of Centerdata's Telepanel project. Telepanel consists of approx. 2000 households, surveyed weekly. Besides the Centerdatabase offers opportunities to compose tailor-made datasets. Buying shares of the Dutch telecommunication company KPN / opinion about promotion campaign by KPN / considering buying KPN-shares / ever before considered to buy shares / reasons for buying KPN-shares / supposed disadvantages of buying KPN-shares. Background Variables: Age categorized / Year of birth / Cohabitation / Sex Housing situation Nr. of children living with family/household / Size of family/household Position in family/household Respondent: occupational status Respondent: net income Respondent: highest type attended / Respondent: highest grade attained.