It is a great pleasure for the Department of Statistics to announce a special discussion paper in Bayesian Analysis: “Dependent Dirichlet Processes” by Steven N. MacEachern, his original 2000 manuscript. The paper is accompanied by “A Modern Perspective on Dependent Dirichlet Processes” by Steven N. MacEachern, Juhee Lee, and Hang J. Kim. Together, the two contributions combine the original formulation of what has become a highly influential class of Bayesian nonparametric models with a contemporary perspective on its development and impact. 

Congratulations to Professor MacEachern and his alumni coauthors!