STATISTICA   SINICA
Volume 11   Number 2   April  2001

Celebrating the New Millennium:Editors' Invited Article-I
Sequential analysis: some classical problems and new challenges....Tze Leung Lai   303
   Comment.......................................................Herman Chernoff   351
   Comment............................................Cheng-Der Fuh and Inchi Hu   355
   Comment...........................................................B. K. Ghosh   357
   Comment..............................................................M. G. Gu   358
   Comment...........................................................Gary Lorden   360
   Comment.....................................................Adam T. Martinsek   364
   Comment..........................................................Moshe Pollak   368
   Comment........................................................David Siegmund   370
   Comment............ ............................................Gordon Simons   372
   Comment.....................................................Bruce W. Turnbull   374
   Comment.............................................................C. Z. Wei   378
   Comment.....................................................Michael Woodroofe   380
   Comment........................................................Benjamin Yakir   382
   Rejoinder.......................................................Tze Leung Lai   388

Characterization of conjugate priors for discrete exponential families..........
   ..............................................................Jine-Phone Chou   409
Criterion-based methods for Bayesian model assessment...........................
   .........................Joseph G. Ibrahim, Ming-Hui Chen and Debajyoti Sinha   419
Bayesian analysis of wandering vector models for displaying ranking data.......
   .........................................Philip L. H. Yu and Lucia K. Y. Chan   445
Bayesian bootstraps for U-processes, hypothesis tests and convergence of
   Dirichlet U-processes.............................................Dixin Zhang   463
On Bahadur efficiency and maximum likelihood estimation in general parameter 
   spaces..........................................................Xiaotong Shen   479
Test of hypotheses based on the weighted likelihood methodology.................
   ...................................Claudio Agostinelli and Marianthi Markatou   499
On the calibration of Silverman's test for multimodality........................
   ..................................................Peter Hall and Matthew York   515
Equivalence of fractional factorial designs.......James B. Clark  and A. M. Dean   537
A note on cyclic orthogonal designs.............Dennis K. J. Lin and J. Y. Chang   549

2001 Statistica Sinica ISSN 1017-0405