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Capacity addition and withdrawal decisions are among the most important strategic decisions made by …rms in oligopolistic industries. In this paper, we develop and analyze a fully dynamic model of an oligopolistic industry with lumpy capacity and lumpy investment/disinvestment. We use our model to suggest answers to two questions. First, what economic(More)
BACKGROUND Previous results from our trial showed that adding oxaliplatin to radiotherapy (RT) increased survival in patients with locoregionally advanced nasopharyngeal carcinoma (NPC) at 2 years. Here, we present the data of long-term efficacy and late toxic effects. PATIENTS AND METHODS Between January 2001 and January 2003, 115 Patients with(More)
PURPOSE The 5th edition of the American Joint Committee on Cancer (AJCC) staging manual defines new rules for classifying nasopharyngeal carcinoma (NPC). The study was conducted to assess its effectiveness in predicting the prognosis for Chinese patient populations. METHODS AND MATERIALS Between June 1993 and June 1994, 621 consecutively admitted patients(More)
M oving production to low-wage countries may reduce manufacturing costs, but it increases logistics costs and is subject to foreign trade barriers, among others. This paper studies a manufacturer's multimarket facility network design problem and investigates the offshoring decision from a network capacity investment perspective. We analyze a firm that(More)
W e study how rework routing together with wage and piece-rate compensation can strengthen incentives for quality. Traditionally, rework is assigned back to the agent who generates the defect (in a self-routing scheme) or to another agent dedicated to rework (in a dedicated routing scheme). In contrast, a novel cross-routing scheme allocates rework to a(More)
We consider a supply chain in which a supplier sells products to multiple retailers. When orders from the retailers exceed the supplier's capacity, she must employ an allocation mechanism to balance supply and demand. In particular, we consider a commonly used allocation scheme in the automobile industry: turn-and-earn, which uses past sales to allocate(More)
The aim of this study was to investigate the outcome in 556 patients with locally advanced nasopharyngeal carcinomas treated by radiation therapy alone. We observed 556 patients with stage T3-4 and N0-3 carcinoma who were treated by conventional radiotherapy alone between January and December 1999. The total dose delivered to the nasopharynx was 66-80 Gy(More)
T he existing outsourcing literature has generally overlooked the cost differential and contract negotiations between manufacturers and suppliers (by assuming identical cost structures and adopting the Stackel-berg framework). One fundamental question yet to be addressed is whether upstream suppliers' cost efficiency is always beneficial to downstream(More)
D espite the spread of cost-driven outsourcing practices, academic research cautions that suppliers' cost advantage may weaken manufacturers' bargaining positions in negotiating outsourcing agreements, thereby hurting their profitability. In this study, we attempt to further understand the strategic impact of low-cost outsourcing on manufacturers'(More)
a r t i c l e i n f o Keywords: Capacity investment and disinvestment Demand uncertainty Strategic uncertainty Dynamic stochastic games Markov-perfect equilibrium Even mature industries seldom settle down into a long-run steady state. Fluctuations in demand disrupt the status quo and call for firms to adjust their capacities on an ongoing basis. We(More)