C with suppliers prone to default is an increasingly common problem in some industries, particularly automotive manufacturing. We model this phenomenon as a two-period contracting game with two identical suppliers, a single buyer, deterministic demand, and uncertain production costs. The suppliers are distressed at the start of the game and do not have access to external sources of capital; hen...

We study a supply chain where an upstream supplier auctions his inventory or capacity as a bundle. The importance of this setting is two-fold: From a practical point of view, there are several examples, specially in service industries (e.g., auctioning the capacity of a stadium to hold events, or auctioning the sponsorship of a website), where a supplier’s capacity is sold as a single piece; fr...

The aim of this study is to clarify whether there is small area variation in the use of gastrostomy that is explained by hospital physician density, so as to detect the existence of supplier-induced demand (SID). The study design is a retrospective cohort using claim data of Fukuoka Late Elders’ Health Insurance, submitted from 2010 to 2013. Study participants included 51,785 older adults who h...

In this paper we investigate the interplay between operations and financial decisions within the context of a two-echelon supply chain. A retailer purchases a single product from a supplier and afterwards sells it in the retail market to a random demand. The retailer, however, is budget-constrained and is therefore limited in the number of units that he may purchase from the supplier. We invest...

In this paper, we consider a supply chain model consisting of a single product, one supplier and multiple retailers. Demand at the retailers is random, but stationary. Each retailer places her orders to the supplier according to the well known (Q,R) policy. We assume that the supplier has on-line information about the demand as well as inventory activities of the product at each retailer and em...

In this paper, we study dynamic supplier alliances in a decentralized assembly system. We examine a supply chain in which n suppliers sell complementary components to a downstream assembler, who faces a price-sensitive deterministic demand. We analyze alliance/coalition formation between suppliers, using a two-stage approach. In Stage 1, suppliers form coalitions that each agree to sell a kit o...

Supply chain partnership involves mutual commitments among participating firms. One example is early order commitment, wherein a retailer commits to purchase a fixed-order quantity and delivery time from a supplier before the real need takes place. This paper explores the value of practicing early order commitment in the supply chain. We investigate the complex interactions between early order ...

We analyze a periodic-review inventory model where the decision maker can buy from either of two suppliers. With the first supplier, the buyer incurs a high variable cost but negligible fixed cost; with the second supplier, the buyer incurs a lower variable cost but a substantial fixed cost. Consequently, ordering costs are piecewise linear and concave. We show that a reduced form of generalize...

This paper focuses on demand chain management, which accomplishes the synchronization of demand with supply through collaboration of buyer and supplier across the chain. And the purpose of it is to find the relationship between four integration strategies produced by combining supply integration and demand integration and its impacts on two performances, operating efficiency and customer satisf...