^ Brown, L., Competitive Marketing Strategy: Dynamic Manoeuvring for Competitive Position, Melbourne, Nelson, 1997; West, D., Ford, J. and Ibrahim, E., Strategic Marketing: Creating Competitive Advantage, Oxford, Oxford University Press, 2010, p. 50-56; Schaars, S.p., Marketing Strategy, The Free Press, 1998, [Chapter 4 - 'A Brief History of Marketing Strategy'], pp 18-29
In addition to being cost-effective, speed is another advantage of telephone interviews. A rate of five or six interviews per hour is typical, but experienced interviewers may be able to conduct more. Phone interviews also can cover a wide geographic range relatively inexpensively. Phone costs can be reduced by taking advantage of less expensive rates during certain hours.