According to a study of the Institute for Economic Research (ifo) participants and exhibitors spent 16.8 million euros on events at Congress Centrum Leipzig (CCL) in 2002, without rental returns. Delegates spent an average of 230 euros (total: l9.8 million euros) on their stay, exhibitors at conventions 8,500 euros (seven million euros). The study also says that, measured by CCL turnover, one euro in meeting returns generates six euros in direct returns for Leipzig