‹‹1››
Brad Tuttle, Former ‘Extreme Couponer’ Admits: It’s a Waste of Time,‹‹2››
Why One Extreme Couponer Gave Up Clipping, National Public Radio, last modified October 30, 2012, http://www.npr.org/2012/10/30/163950605/why-one-extreme-couponer-gave-up-clipping.‹‹3››
We Are a Coupon Nation, RetailMeNot, Inc., last modified September 8, 2014, http://retailmenot.mediaroom.com/2014-09-08-We-Are-a-Coupon-Nation.‹‹4››
CPG Digital Coupon Circulation Grows By 23.4 % in 1H16, Reaching 3.7 Billion, Kantar Media, August 15, 2016, http://www.kantarmedia.com/us/newsroom/press-releases/cpg-digital-coupon-circulation-grows-by-23-4-in-1h16.‹‹5››
Improving Economy, Increasing Shopper Demand for Digital Offers Impacting Coupon Use, Inmar, February 1, 2016, http://www.inmar.com/press-release/improving-economy-increasing-shop-per-demand-for-digital-offers-impacting-coupon-use/.‹‹6››
Improving Economy, Increasing Shopper Demand for Digital Offers Impacting Coupon Use, Inmar, February 1, 2016, http://www.inmar.com/press-release/improving-economy-increasing-shop-per-demandfor-digital-offers-impacting-coupon-use/.‹‹7››
Sherri Kuhn, The Wealthy Are More Likely to Use Coupons, Ironically, She Knows, February 10, 2014, http://www.sheknows.com/living/articles/1029861/the-wealthy-are-more-likely-to-use-cou-ponsironically.‹‹8››
Is Metal Detecting Worth It? Metal Detecting Forum, last modified January 5, 2011, http://metaldetectingforum.com/showthread.php?t=62457.‹‹9››
Lulu Chang, Americans spend an alarming amount of time checking social media on their phones, Digital Trends, June 13, 2015, http://www.digitaltrends.com/mobile/informate-report-social-media-smartphone-use/.‹‹10››
Edward Lee Thorndike, Animal Intelligence: An Experimental Study of the Associative Processes in Animals,‹‹11››
Daniel Schacter,‹‹12››
Top Secret WWII Bat and Bird Bomber Program, History Net, last modified June 12, 2006, http://www.historynet.com/top-secret-wwii-bat-and-bird-bomber-program.htm.‹‹13››
Bruce K. Alexander, Robert B. Coambs, and Patricia F. Hadaway, The Effect of Housing and Gender on Morphine Self-Administration in Rats,‹‹14››
Eryn Paul, «Why Germans Work Fewer Hours But Produce More: A Study in Culture,» KNote, http://knote.com/2014/11/10/why-germans-work-fewer-hours-but-produce-more-a-study-in-culture.‹‹15››
Kim Witte and Mike Allen, «A Meta-Analysis of Fear Appeals: Implications for Effective Public Health Campaigns,»‹‹16››
Allison Earl and Dolores Albarracin, «Nature, Decay, and Spiraling of the Effects of Fear-Inducing Arguments and HIV Counseling and Testing: A Meta-Analysis of the Short- and Long-Term Outcomes of HIV-Prevention Interventions,»‹‹17››
Kirk Mitchell, «Limon prison incentive programs keep inmates in check,»‹‹18››
Daniel Kahneman and Angus Deaton, High Income Improves Evaluation of Life but Not Emotional Well-Being,