Three factors necessary for demand to be effective are

Which of the following distribution systems offers speed and reliability when emergency supplies are needed overseas? a. railroadsb. airfreightc. truckingd. pipelinese. waterways

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Leading guitar string producer wound up inc. has enjoyed a competitive advantage based on its proprietary coating that gives its strings a clearer sound and longer lifespan than uncoated strings. one of wound up's competitors, however, has recently developed a similar coating using less expensive ingredients, which allows it to charge a lower price than wound up for similar-quality strings. wound up's competitive advantage is in danger due to a. a lack of perceived value b. a lack of organization c. direct imitation and substitution d. resource immobility