American Statistical Association and Taylor & Francis Posted on June 2, 2014 by SCG DR Copyright Holders: American Statistical Association;Taylor & Francis Self-archiving policy Conditions Accepted version: √ 12months embargo: STM Journal 18months embargo: SSH Journal Published version: X Remarks: Follow Taylor & Francis According to Taylor & Francis’ self-archiving policy, we will only archive the accepted version with specified embargo period. “©American Statistical Association and Taylor & Francis” is correct. (verified by Zhao Yue via email) Verification Date: 30.05.2014