I investigate the e¤ects of switching costs on the market outcome in network industries using a dynamic duopoly model of price competition in the presence of an outside option. I …nd that the role of switching costs depends on network e¤ects and the outside option. Without a viable outside option, high switching costs can neutralize the tendency towards high market concentration associated with...

Introductory Offers in a Model of Strategic Competition* We show how introductory offers emerge endogenously under conditions of competition in markets with switching costs. In a standard Hotelling model we find the combination of switching costs and introductory discounts to reduce industry profits relative to industries without switching costs, in which introductory offers do not emerge. Thus...

We discuss certain general features of the pentaquark picture for the θ, its 10F partner, Ξ3/2, and possible heavy quark analogues. Models employing spin-dependent interactions based on either effective Goldstone boson exchange or effective color magnetic exchange are also used to shed light on possible corrections to the Jaffe-Wilczek and KarlinerLipkin scenarios. Some model-dependent features...

Our overall goal is to develop and qualify devices capable of repetitively switching high peak currents (>1 MA) and large quantities of charge (>500 C). In 1988 we designed and tested a hollow-anode ignitron at levels of up 925 kA and 280 C per shot[1]. This level is three times that previously achieved with standard, commercially available tubes[2]. Our latest designs, developed with the coope...

There is a systematic relationship between stress accent and vocalic identity in spontaneous English discourse (the Switchboard corpus of telephone dialogues). Low vowels are much more likely to be fully accented than their high vocalic counterparts. And conversely, high vowels are far more likely to lack stress accent than low or mid vocalic segments. Such patterns imply that stress accent and...

To the people who are difficult to have a meal together with their families or close partners because of the time-zone difference or the life-rhythm difference, asynchronous video messaging is one way to achieve time-shifted communication. This paper studies the influence of adaptive video speed control in such a video message. We propose synchronization of the video with its user in that the d...

The n-2 repetition cost has been explained by persisting inhibition of a previously valid task set which dissipates over time. This account has two implications, namely that the switch cost decreases with the number of tasks involved in switching and that the cost should also be observed in switching between two tasks. Neither of these implications is supported by empirical evidence. An alterna...