A Two-Stage Non Discretionary Trading Suspension Mechanism: Effects on Market Quality

A VERTICALLY DIFFERENTIATED DUOPOLY WITH MARGINAL COST DIFFERENTIALS

International Game Theory Review ◽

10.1142/s0219198903000908 ◽

2003 ◽

Vol 05 (01) ◽

pp. 73-81 ◽

Cited By ~ 5

Author(s):

PAMELA M. SCHMITT

Keyword(s):

Marginal Cost ◽

Market Quality ◽

High Quality ◽

Two Stage ◽

Marginal Costs ◽

Duopoly Model ◽

Stage Game ◽

The Impact ◽

Cost Differentials

A vertically differentiated duopoly model analyzes the impact of marginal cost differentials on price and quality. Firms play a two-stage game, first simultaneously choosing quality and then simultaneously choosing price. When the firm producing the high quality good faces an increase in its marginal cost, both firms increase price and upgrade quality. When the firm producing the low quality good faces an increase in its marginal cost, both firms decrease price and downgrade quality. When a first firm enters the market, quality position decisions are examined under the assumption that both the firm-specific and the quality-specific marginal costs are higher when a firm produces a higher quality good. The results show that the first entrant produces the low quality good and earns higher profits.

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Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100153816 ◽

1989 ◽

Vol 47 ◽

pp. 368-369

Author(s):

Sengshiu Chung ◽

Peggy Cebe

Keyword(s):

Single Crystals ◽

High Performance ◽

Dilute Solution ◽

Two Stage ◽

Annealing Behavior ◽

High Performance Polymers ◽

Seeding Method ◽

Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

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