Taylor, H., Fieldman, G. and Altman, Y. (2008), E-mail at work: a cause for concern? The implications of the new communication technologies for health, wellbeing and productivity at work, Organisational Transformation and Social Change, Vol. 5 No. 2, pp. 159-73. Taylor et al (2008) find that 98% of business-to-business communication employs e-mail.
Shipley, D. and Schwalbe, W. (2008). SEND: Why people email so badly and how to do it better. Random House, New York, p.9.“Between 2005 and 2010 the average quantity of email received per person doubled.”
Cain, M. (2006) “Who needs training on e-mail?”, Gartner Research, July, ID no. G00141290. “Gartner estimate that knowledge workers spend one to two hours a day managing email.” Cited by Vidgen et al, 2011.
Davenport, T. (2005) Thinking for a Living, Harvard Business School Press, Boston, MA. “20 percent of an employee’s eight hour day is spent working with e-mail.” Cited by Vidgen et al, 2011.
Gupta, A., Sharda, R., and Greve, R. (2010), “You’ve got mail! Does it really matter to process emails now or later?, Information System Frontiers, Vol 13, pp. 637-653. “Email consumes as much as a quarter of knowledge workers’ time in organisations today”
Jackson, T., Burgess, A. and Edwards, J. (2006) “Simple approach to improving e-mail communication”, Communications of the ACM, Vol 49 No. 6, pp. 107-9. “Jackson et al (2006) calculated the daily cost of e-mail use for the 2850 e-mail users of 3M (a large multinational) as 49k Euro per day and over 12.25m Euro per year. They estimate that e-mail training could save 3840 Euro per day / 921K Euro per annum, based on a minimum saving of 8 per cent on total cost of reading e-mail.” Cited by Vigden et al, 2011.
Gupta, A., Sharda, R., and Greve, R. (2010), “You’ve got mail! Does it really matter to process emails now or later?, Information System Frontiers, Vol 13, pp. 637-653. “Developing organisational wide policies to encourage users to check their emails on a scheduled basis rather than continuously could save an organisation thousands of hours each year.”
Gill, B (2013) E-Mail: Not Dead, Evolving, Harvard Business Review, June, p. 32. HBR 2014 (June) “In a year workers spend, on average, the equivalent of 111 workdays dealing with e-mail” (based on a 2012 survey of 2600 workers from across the U.S, UK and South Africa who use e-mail every day). “A 10% increase in efficiency would buy back more than two workweeks per year per employee.”
Hair, M., Renaud, K., and Ramsay, J (2007) The influence of self-esteem and locus of control of perceived email-related stress, Computers in Human Behaviour, Vol 23, Issue 6, pp. 2791-2803.”More than one-third of workers suffer from ‘email stress’ (Daily Telegraph, 2007), citing research that 34% of workers felt ‘stressed’ by the sheer number of emails and obligation to respond quickly and a further 28 % were ‘driven’ because they saw them as a source of pressure.”
Vidgen, R., Sims, J., Powell, P (2011) Understanding e-mail Overload, Journal of Communication Management, Vol. 15, No. 1, pp. 84-98. Citing research by Devonport (2005), Vidgen et al report that a survey of knowledge workers found that 26% of respondents felt e-mail was overused in their organisations and 21% felt overwhelmed by the amount of email received.