We investigate the impact of network structures describing reciprocal influence-relationships between agents on their perceived ambiguity. We argue that, under specific assumptions, the potential complexity of the link-structures creates extra uncertainty or ambiguity over the "right"...

We consider a model in which productive bilateral links are formed between heterogeneous agents who differ in their innate productivity. Local information is complete but an outside planner can observe only network properties. We ask if consistent credit rating -- where agents' ratings are...

We consider a productive network formed by agents with heterogeneous privately-known productivity types. Under convex cost of link formation, bilateral links create endogenous externalities. We calculate the "rearrangement cost" imposed on the entire network by each subset of other agents an...

We will show in this paper the role of inventories in explaining copper price volatility. Using a three factor model we derive a fundamental long-term value for copper. Second, we emphasis the significance of this fundamental long-term value by considering an agent based model approach in which...