This short paper presented a prelimary economic analysis of incentives in cyberlockers based on measurement results from three different types of sites related to cyberlockers. We found: • The fastest growing cyberlockers in terms of links posted on FilesTube and Teh Paradox forum are those which offer incentive plans. • The end of incentive plans at Rapidshare was followed by a major drop-off in uploader activity on that site. The number of Rapidshare links on FilesTube fell by 67% in the months after the plans were terminated. Rapidshare links fell by 95% on the Teh Paradox forum. • It is possible for uploaders on FileSonic to earn sizeable amounts from their activities. The average daily earnings for those who posted screenshots on a web forum was $33.69 with one uploader reporting earnings of $226.27 per day. • FileSonic places a higher value on uploaders who can entice downloaders to buy premium memberships rather than uploaders who post popular files. The average earnings for uploaders who chose the pay-per-sale incentive scheme was $46.10 versus $21.12 for those who chose the pay-per-download scheme.
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