¹ See Paul Heyne, Peter J. Boetke, and David L. Prychitko, The Economic Way of Thinking, 12th ed. (Upper Saddle River, NJ: Pearson, 2010), 171–176.

² Baker, Linda. 2012. “Cooking Clean.” Oregon Business Magazine 35, no. 9: 9. Business Source Premier, EBSCOhost (accessed April 18, 2015).

³ United Nations Foundation. “Health.” Global Alliance for Clean Cookstoves. Accessed April 19, 2015. http://cleancookstoves.org/impact-areas/health/

⁴ See “Urban Outfitters Swears by Naughty Holiday Catalog,” USA Today, December 12, 2012, p. 1B.

⁵ Hoover’s Handbook of American Business. 2017 (Austin: Hoover’s, 2017), pp. 790–791.

⁶ “Snap’s IPO Will Be the Largest in Years.” The Economist. Accessed February 15, 2017. http://www.economist.com/news/business/21716070-app-company-has-pioneered-distinctive-vision-internet-snaps-ipo-will-be-largest

⁷ Porter, Michael, and Kramer, Mark. “Creating Shared Value,” Harvard Business Review, January–February 2011, pp. 62–77.

⁸ See Karl E. Case and Ray C. Fair, Principles of Economics, 10th ed., updated (Upper Saddle River, NJ: Prentice Hall, 2011), 103–105.

⁹ http://www.epa.gov/agriculture/ag101/demographics.html (January 10, 2015)

¹⁰ Case and Fair, Principles of Economics, 432–433.

¹¹ https://www.cia.gov/library/publications/the-world-factbook/geos/us.html, accessed on January 2, 2017

¹² http://www.census.gov/popest/data/historical/2010s/vintage_2011/index.html, accessed on January 2, 2017

¹³ http://www.census.gov/popest/data/historical/2010s/vintage_2011/index.html, accessed on January 2, 2017

¹⁴ See Olivier Blanchard, Macroeconomics, 6th ed. (Upper Saddle River, NJ: Pearson, 2013), 24–26.

¹⁵ See Jay Heizer and Barry Render, Operations Management, 11th ed. (Upper Saddle River, NJ: Prentice Hall, 2014).

¹⁶ Heyne, Paul, Boetke, Peter J., and Prychitko, David L. The Economic Way of Thinking, 12th ed. (Upper Saddle River, NJ: Pearson, 2010), 491–493.

¹⁷ Ayers, Ronald M., and Collinge, Robert A. Economics: Explore and Apply. (Upper Saddle River, NJ: Prentice Hall, 2004), 163–167.

¹⁸ See Heyne, Boetke, and Prychitko, The Economic Way of Thinking, 403–409, 503–504.

¹⁹ United States Department of Labor. “Employment Situation Summary.” Bureau of Labor Statistics. Accessed February 17, 2017. https://www.bls.gov/news.release/empsit.nr0.htm

²⁰ http://www.ncsl.org/research/labor-and-employment/national-employment-monthly-update.aspx, accessed on January 3, 2015

²¹ Gaudiosi, John. “How Sony, Microsoft, and Nintendo Are Preparing for Their Gaming Future” Fortune. Accessed February 13, 2017. http://fortune.com/2016/12/23/sony-microsoft-nintendo-future.