How does Nike get people to buy their products?

SOURCE: Rolling Stone

• The economic principal I will explore is (copy/paste bolded from the link): People generally respond to incentives in predictable ways.
• The overall question I will research to help explore the economic principle is (the question should contain 1-2 keywords from the economic principle): How does a company such as nike incentive people to buy their products via marketing. 
• 3-4 subquestions that will help me answer my overall research question are: 
  • Do athletes who have a sponsorship have a big influence on the companies sales?
  • Do companies strategically sell their items at times when other companies aren't selling similar items?
  • How do companies tailor their items to their customers likes?
  • What are these big companies most effective advertising methods?
• Links to 3-4 reliable resources that can help answer the research question:
  •  https://www.nsga.org/globalassets/management-conference-archives/2013/karla-mccormick.pdf
  •  https://www.referralcandy.com/blog/nike-marketing-strategy/
  •  https://www.forbes.com/sites/gregpetro/2016/07/08/nike-just-does-it-keeping-an-eye-on-the-customer/
  •  https://www.bizjournals.com/bizjournals/how-to/marketing/2015/10/take-a-lesson-from-nikes-customer-diagnosis.html