%0 Journal Article %T Spiraling downward: The reciprocal relation between attitude toward political behavioral targeting and privacy concerns %A Claes de Vreese %A Damian Trilling %A Natali Helberger %A Tom Dobber %J New Media & Society %@ 1461-7315 %D 2019 %R 10.1177/1461444818813372 %X Tailored political messages are increasingly prevalent in election time, but we know little about how people perceive such data-driven and potentially privacy-infringing techniques. This article examines how demographics relate to privacy concerns and attitudes toward ¡°political behavioral targeting¡± (PBT), how privacy concerns and attitudes toward PBT relate over time, and explore their relation with autonomy, electoral deliberation, and chilling effects. Using a three-wave panel study, administered in the Netherlands (N£¿=£¿879), we examine a potential reciprocal relation between attitude toward PBT and privacy concerns, which may form a negative reinforcing spiral dynamic over time. This dynamic could result in undesirable behavior of the voter from a democratic viewpoint (e.g. chilling effects). We find that demographics fall short in explaining privacy concerns. More importantly, we find evidence for a reinforcing spiral dynamic and, by doing so, contribute to the discussion about the threats and promises of PBT to society %K Attitudes %K campaigns %K microtargeting %K political behavioral targeting %K privacy concerns %U https://journals.sagepub.com/doi/full/10.1177/1461444818813372