Rejoinder: One-step sparse estimates in nonconcave penalized likelihood   models
  We would like to take this opportunity to thank the discussants for their thoughtful comments and encouragements on our work [arXiv:0808.1012]. The discussants raised a number of issues from theoretical as well as computational perspectives. Our rejoinder will try to provide some insights into these issues and address specific questions asked by the discussants. 
Hui Zou, Runze Li