Whereas in some industries retailers distribute the products of all suppliers, in other industries they differentiate themselves from their rivals by becoming the exclusive distributors of some products, which results in incomplete distribution networks. To study this phenomenon, I analyze a...

This paper studies how firms' offshoring decisions shape a country's domestic production networks. We develop a model in which heterogeneous firms source inputs from multiple industries located in different domestic regions and foreign countries. Input sourcing entails communication with...

The restrictive measures that have been imposed from March 2020 on business activities in several countries to reduce the spread of the COVID-19 pandemic can be interpreted as shocks to global supply chains. We propose some agent-based models to evaluate the economic effects of different...

We study a one-period supply chain problem consisting of numerous suppliers delivering a homogenous good. Individual supply is uncertain and may exhibit dependencies with other suppliers as well as with the stochastic demand. Assuming that reliability of supply represents an economic value for...

Procurement programs often aim to rely on a diverse pool of suppliers, besides achieving cost effectiveness. We propose complementing a share auction for dual sourcing with affirmative action to create an endogenous set-aside for a high-cost supplier. In our model more intensive affirmative...

Buyer-seller networks where price is determined by an ascending-bid auction are important in many economic examples such as certain real estate markets, radio spectrum sharing, and buyer-supplier networks. However, it may be that some sellers are better off not participating in the auction. We...

We present a model where firms engage in imperfect price competition, firms cannot sell to all consumers. A bipartite network structure models the local interaction of firms and consumers. We solve for the unique equilibrium of duopolistic price competition and study the implications of network...

Buyer-seller networks where price is determined by an ascending-bid auction are important in many economic examples such as certain real estate markets, radio spectrum sharing, and buyer-supplier networks. However, it may be that some sellers are better off not participating in the auction. We...

The purpose of this paper is to explore the problem of power distribution within networks of relationships between companies and consumers (business-to-consumer (B2C) networks) and to examine the ways in which value is created and captured in such structures. To this end, we applied the network...

We study a model of network externalities transmitted over links wherein the externalities stem from links themselves rather than nodes. For example, bilateral investments can fail and trigger cascading defaults of firms. Joint research projects can succeed and innovations can be diffused over...