Gad Saad

Gad Saad (/ˈɡæd ˈsæd/; Arabic: جاد سعد‎; Hebrew: גד סעד‎; born October 13, 1964) is a Lebanese-Canadian evolutionary psychologist and professor in the John Molson School of Business at Concordia University[1] who is known for applying evolutionary psychology to marketing and consumer behaviour.[2][3] He also writes a blog for Psychology Today, and hosts a YouTube channel titled "The Saad Truth".

Gad Saad
Gad Saad 2010 JMSB Faculty Portrait 7175 web.jpg
Born (1964-10-13) October 13, 1964 (age 56)
NationalityLebanese, Canadian
EducationMcGill University (BSc, MBA)
Cornell University (MSc, PhD)
Scientific career
FieldsEvolutionary psychology
InstitutionsConcordia University
ThesisThe adaptive use of stopping policies in sequential consumer choice (1994)
Doctoral advisorEdward Russo
WebsiteOfficial website

Early life and educationEdit

Saad was born in 1964 in Beirut, Lebanon, to a Jewish family. His family fled to Montreal, Quebec, Canada in October 1975 to escape the Lebanese Civil War.[4] His older brother David Saad is a judoka who competed in the men's lightweight event at the 1976 Summer Olympics.[5]

He obtained a B.Sc. (Mathematics and Computer Science) and M.B.A. from McGill University, and an M.Sc. and Ph.D. from Cornell University.[6] Saad's doctoral adviser was the mathematical and cognitive psychologist and behavioural decision theorist J. Edward Russo.


Saad has been a professor of marketing at Concordia University since 1994. As of 2020, he holds the Concordia University Research Chair in Evolutionary Behavioural Sciences and Darwinian Consumption.[7] During this time he has also held visiting professorships at Cornell University, Dartmouth College, and the University of California, Irvine.[8] He was an associate editor for the journal Evolutionary Psychology from 2012 to 2015.[9] He is an advisory fellow for the Centre for Inquiry Canada.

Saad hosts a YouTube show titled The Saad Truth. As of February 2021, his channel has received more than 22 million views.[10]

Saad writes a blog for Psychology Today titled Homo Consumericus.[11]


One line of research that Saad has been exploring is how hormones affect consumers and the decisions they make. Examples of this research include how showy products affect testosterone levels,[12][13] how testosterone levels affect various forms of risk-taking,[14][15][16] and how hormones in the menstrual cycle affect buying decisions.[17][18] Another line of research has involved gift giving, including how men and women differ in why they give.[19][20][21][22]

Coverage and interviewsEdit

Saad has been profiled in the Toronto Star[10] and his life story was documented by the Télévision française de l'Ontario.[23] His views have also been mentioned in The Economist,[24] Forbes,[25] Chatelaine,[26] Time,[27] The Globe and Mail,[2] and The New York Times.[28]

Saad had been a contributing author for The Huffington Post[29] and The Wall Street Journal.[30]

Saad appeared on Reason TV in November 2011.[31] In September 2015, Saad was interviewed by TJ Kirk on the Drunken Peasants Podcast.[32] As of 2016, he had been featured on five episodes of The Joe Rogan Experience.[10] Saad has also appeared on Josh Szeps' #WeThePeople podcast[citation needed], Sam Harris' Making Sense podcast (then titled Waking Up),[10] The Adam Carolla Show,[33] Talk Nerdy with Cara Santa Maria,[34] The Rubin Report,[10] and the Glenn Beck Podcast.[citation needed]

Honours and awardsEdit



  • Saad, G. (2007). The Evolutionary Bases of Consumption. Mahwah, NJ: Lawrence Erlbaum. ISBN 9780805851502. Book review[37]
  • Saad, G. (ed.) (2011). Evolutionary Psychology in the Business Sciences. Springer: Heidelberg, Germany. ISBN 9783540927839. Book review[38][39]
  • Saad, G. (2011). The Consuming Instinct: What Juicy Burgers, Ferraris, Pornography, and Gift Giving Reveal About Human Nature. Amherst, NY: Prometheus Books. ISBN 9781616144296. Book review[40]
  • Saad, G. (2020). The Parasitic Mind: How Infectious Ideas Are Killing Common Sense. Washington, DC: Regnery Publishing. ISBN 9781621579595.

Selected journal articlesEdit

  • "Sex Differences in the Ultimatum Game: An Evolutionary Psychology Perspective". Journal of Bioeconomics. (2001).
  • "The Effect of Conspicuous Consumption on Men’s Testosterone Levels". Organizational Behavior and Human Decision Processes. (2009).
  • "Future of evolutionary psychology". Futures. (2011).
  • "Evolutionary consumption". Journal of Consumer Psychology. (2013).
  • "The framing effect when evaluating prospective mates: An adaptationist perspective". Evolution and Human Behavior. (2014).


  1. ^ "Do Great Minds Think Alike? The Impact Of Culture On Your Creative Thinking Skills". Medical Daily, May 22, 2015 By Lizette Borreli
  2. ^ a b "Do human instincts explain what we buy, and why we want it?". The Globe and Mail. Toronto. 13 July 2011.
  3. ^ "Does It Feel Better To Give Or Receive A Gift?". Popular Science, By Daniel Engber. November 17, 2015
  4. ^ "Story Profile - Passages Canada".
  5. ^ "Gad Saad on Growing up in Lebanon, the Olympics, and Cultural Homophily". The Rubin Report. 17 August 2016.
  6. ^ "Gad Saad".
  7. ^ "Gad Saad, PhD". Concordia University. Retrieved 21 June 2020.
  8. ^ "Faculty".
  9. ^ [dead link]
  10. ^ a b c d e "Montreal professor known as 'The Gadfather' argues against political correctness". Toronto Star, Giuseppe Valiante. Canadian Press. October 30, 2016
  11. ^ "Homo Consumericus". Psychology Today. Retrieved 20 June 2020.
  12. ^ Saad, Gad; Vongas, John G. (2009). "The effect of conspicuous consumption on men's testosterone levels". Organizational Behavior and Human Decision Processes. 110 (2): 80–92. doi:10.1016/j.obhdp.2009.06.001.
  13. ^ "Testosterone drives men to buy fast cars". CBC News. 14 October 2009.
  14. ^ Stenstrom, Eric; Saad, Gad; Nepomuceno, Marcelo; Mendenhall, Zack (2011). "Testosterone and domain-specific risk: Digit ratios (2D:4D and rel2) as predictors of recreational, financial, and social risk-taking behaviours". Personality and Individual Differences. 51 (4): 412–416. doi:10.1016/j.paid.2010.07.003.
  15. ^ Stenstrom, Eric; Saad, Gad (2011). "Testosterone, Financial Risk-Taking, and Pathological Gambling". Journal of Neuroscience, Psychology, and Economics. 4 (4): 254–266. doi:10.1037/a0025963.
  16. ^ "Le succès au bout de l'index -".
  17. ^ Saad, Gad; Stenstrom, Eric (2011). "Calories, beauty, and ovulation: The effects of the menstrual cycle on food and appearance-related consumption". Journal of Consumer Psychology. 22: 102–113. doi:10.1016/j.jcps.2011.10.001.
  18. ^ "8 Dating Lies Men And Women Tell". Huffington Post. 26 March 2013.
  19. ^ Laroche, Michel; Saad, Gad; Browne, Elizabeth; Cleveland, Mark; Kim, Chankon (2000). "Determinants of In-Store Information Search Strategies Pertaining to a Christmas Gift Purchase". Canadian Journal of Administrative Sciences. 17 (1): 1–19. doi:10.1111/j.1936-4490.2000.tb00203.x.
  20. ^ Laroche, Michel; Saad, Gad; Cleveland, Mark; Browne, Elizabeth (2000). "Gender Differences in Information Search Strategies for a Christmas Gift". Journal of Consumer Marketing. 17 (6): 500–522. doi:10.1108/07363760010349920.
  21. ^ Laroche, Michel; Saad, Gad; Kim, Chankon; Browne, Elizabeth (2000). "A Cross-Cultural Study of In-Store Information Search Strategies for a Christmas Gift". Journal of Business Research. 49 (2): 113–126. doi:10.1016/S0148-2963(99)00008-9.
  22. ^ Gad Saad, Tripat Gill (2003). "An evolutionary psychology perspective on gift giving among young adults". Psychology and Marketing. 20 (9): 765–784. doi:10.1002/mar.10096. Archived from the original on 2012-12-16.
  23. ^ "Gad Saad". TFO Education.
  24. ^ "Homo_Administrans". The Economist. 25 September 2010.
  25. ^ DiSalvo, David. "When It Comes To Choosing Mates, Women And Men Often Get Framed". Forbes.
  26. ^ Flannery Dean. "How your period dictates your spending habits". Chatelaine.
  27. ^ "Love is Marketing: Women Reject Men Based on Hype". Time.
  28. ^ Friedman, Richard A. (7 December 2004). "This Is for You, Dear, But It's All About Me". The New York Times.
  29. ^ Saad, Gad (21 January 2015). "Should Secular Societies Accommodate Religious Beliefs?". Huffington Post.
  30. ^ Saad, Gad (21 June 2011). "The Consuming Instinct". The Wall Street Journal.
  31. ^ Weissmueller, Zach (15 November 2011). " Evolutionary Psychologist Gad Saad on Consumerism, Sex, Advertising, and Human Nature". Reason. Retrieved 14 July 2020.
  32. ^ Drunken Peasants (2015-09-30), Gad Saad Joins Us - Steve Shives on Feminism and Atheism - Anita Sarkeesian at the UN - DPP #159, retrieved 2019-07-06
  33. ^ "Dr. Gad Saad". 2014-08-14.
  34. ^ Talk Nerdy with Cara Santa Maria #75. 16 August 2015.
  35. ^ Profile at Concordia
  36. ^ Archived February 19, 2015, at the Wayback Machine
  37. ^ Griskevicius, Vladas (2008). "DEFINE_ME_WA". 29 (4): 297–298. doi:10.1016/j.evolhumbehav.2007.12.006.
  38. ^ Patrick A. Stewart (2013). "Book Review: Evolutionary Psychology in the Business Sciences". Politics and the Life Sciences. 32 (2): 130–133. doi:10.2990/32_2_130. S2CID 145406315.
  39. ^ Jevons, Colin (2013). "The Consuming Instinct by Gad Saad. Published by Prometheus Books, 2011 in New York, NY". Psychology & Marketing. 30 (3): 293. doi:10.1002/mar.20605.
  40. ^ "Nonfiction Book Review: The Consuming Instinct: What Juicy Burgers, Ferraris, Pornography, and Gift Giving Reveal About Human Nature by Gad Saad. Prometheus, $25 (340p) ISBN 978-1-61614-429-6".

External linksEdit