Data sharing and citation rate

EN: A presentation by Heather Piwowar at Nature Precedings directed my attention to a PLoS ONE article about data sharing and its effect on the citation rate by her [1]. Now as we have a proof that publishing data increases the amount of citations, more people are hopefully motivated to do so. Unfortunately I think that some people lock their data as long as they can to avoid competition. A further publication is maybe more worth than some additional citations.

[1] Sharing detailed research data is associated with increased citation rate. Piwowar HA, Day RS, Fridsma DB PLoS ONE. 2007; 2: e308