Traditional international trade theories have some limits in analyzing international crude oil trade as a system with numerous countries and complicated relationships. Complex network theory provides a method to analyze the world-wide trade system entirely and partly. Complex network models on...

In a biomedical study, it often occurs that some covariates of interest are not measured exactly and only some auxiliary information on them is available. In this case, a question of interest is how to make use of the available auxiliary information for statistical analysis. This paper discusses...

Stackelberg equilibrium describes the optimal strategies of a player, when she (the leader) first credibly commits to a strategy. Her opponent (the follower) will best respond to her commitment. To compute the optimal commitment, a leader must learn enough follower's payoff information. The...