Lit Review on Spamming

https://www.inderscienceonline.com/doi/abs/10.1504/IJIIM.2010.03071

• "To the consumer, unknown commercial text messages are seen as nothing more than the unsolicited commercial messages (spam). Spam is the subject of regulation in a number of jurisdictions. This aim of this article is to firstly examine what is spam and what are its implications. Secondly, the article briefly considers some of the legislations promulgated. Finally, the article evaluates the factors that should be considered to enhance a consumer's experience in mobile marketing." - From Abstract 2010 Ong

https://www.researchgate.net/profile/Douglas_Pires/publication/221650822_A_Campaign-based_Characterization_of_Spamming_Strategies/links/0deec515efe6447ab0000000/A-Campaign-based-Characterization-of-Spamming-Strategies.pdf

• "we found strong relations between the origin of the spam and how it abused the network, and also between operating systems and types of abuse." - from Abstract 2015 Calais et al 

https://www.cnet.com/news/survey-why-do-people-respond-to-spam/

• Only 12% of those spammed responded for the usefulness of the product

https://academic.oup.com/poq/article/68/1/94/1855069

• Web vs Mail response rates. 
• "The findings of this research suggest that, in a population in which each member has Web access, a Web survey application can achieve a comparable response rate to a questionnaire delivered by surface mail if the Web version is preceded by a surface mail notification. A caveat is that we found a significant age difference in response to mail and Web survey versions. Further, considering Web survey applications alone, the findings suggest that a mail prenotice can increase response rates. In this study, a reminder notification was less effective. The cost advantage of a mail notification/Web questionnaire delivery combination suggests that this approach may be beneficial for studying populations with full access to the Internet. Further research comparing this approach with advance e-mail notification is needed. In addition, further research examining possible demographic differences in compliance with mail and Web survey requests is desirable."

https://www.baylor.edu/content/services/document.php/183060.pdf#page=2

• Cold calling success rates 
• "Over the course of a two-week period in November 2011, 50 participating agents made 6,264 phone-based cold calls, collectively. Of the 6,264 cold calls placed, 28% were answered, 55% were not answered, and 17% were non-working numbers. While 6,264 calls were placed over the seven-day period, 72% were very quick calls due to nonanswers and non-working phone numbers. Accounting for non-answers and non-working numbers becomes the tedious part of working true cold calling lists. However, the 28% of calls that were completed (1,774) were productive calls. Out of the 1,774 calls that were answered, agents were able to set a total of 19 appointments with prospective clients, and 11 referrals were received. Agents were asked to call back at a later time by 132 prospective clients, and 1,612 of the callees were not interested in the offering or refused additional information"

https://www.forbes.com/sites/forbesagencycouncil/2017/10/10/the-death-of-the-cold-call-how-not-to-sell-to-consumers-in-the-modern-age/#5daec50b633e

• Estimates from professionals reinforce data collected by BU source above

https://www.pcmag.com/article2/0,2817,2497672,00.asp

• "One and done" marketing does not work. 
• CRM "At the core of relationship marketing is a focus on working together—you and your customer—to jointly accomplish your goals. And just as any good relationship involves some self-sacrifice so, too, should your relationship with your customers." 2016 Johnson