1. Average tax rate is defined as total tax revenue divided by gross domestic product. See “Taxes and Other Revenues,” in CIA World Factbook, www.cia.gov/library/publications/the-world-factbook/rankorder/2221rank.html (Country Comparisons: Taxes and Other Revenues n.d.), accessed April 6, 2016)

2. Ruut Veenhoven, “World Database of Happiness,” http://worlddatabaseofhappiness.eur.nl (accessed April 6, 2016).

3. U.S. Department of Justice, “Justice Department Requires US Airways and American Airlines to Divest Facilities at Seven Key Airports to Enhance System-Wide Competition and Settle Merger Challenge,” November 12, 2013, http://www.justice.gov/opa/pr/2013/November/13-at-1202.html (accessed April 6, 2016).

4. Vanessa Wong “With Keurig 2.0, Green Mountain Wants Its Monopoly Back,” Bloomberg Businessweek, March 11, 2014, www.businessweek.com/articles/2014-03-11/green-mountain-releases-keurig-2-dot-0-to-help-restore-its-monopoly (accessed April 6, 2016).

5. The World Bank, Table: Central government debt, total (% of GDP), http://data.worldbank.org/indicator/GC.DOD.TOTL.GD.ZS/countries (accessed April 6, 2016).

6. Bureau of Labor Statistics, “Frequently Asked Questions, Question 6,” www.bls.gov/cpi/cpifaq.htm#Question_6.

7. Bureau of Labor Statistics, “Table 1: Relative Importance of Components in the Consumer Price Indexes: U.S. City Average,” December 2010, www.bls.gov/cpi/cpiri2010.pdf.

8. Allison Schrager, “The Great Debate,” Reuters, August 28, 2013, http://blogs.reuters.com/great-­debate/2013/08/28/five-years-after-recession-we-still-cant-agree-on-what-causes-joblessness.

9. “Historical Inflation,” www.inflationdata.com/Inflation/Inflation_Rate/HistoricalInflation.aspx.

10. “The U.S. Inflation Rate—1948–2007,” www.miseryindex.us/irbyyear.asp.

11. Sam Mamudi, “Lehman Folds with Record $613 Billion Debt—MarketWatch,” Wall Street Journal, September 15, 2008, www.marketwatch.com/story/lehman-folds-with-record-613-billion-debt?siteid=rss.

12. “Humbled GM Files for Bankruptcy Protection Business Autos Msnbc.com,” June 1, 2009, www.msnbc.msn.com/id/31030038/ns/business-autos/t/humbled-gm-files-bankruptcy-protection.

13. Teresa Sullivan, “Bankruptcy Statistics 1980–2010,” www.bankruptcyaction.com/USbankstats.htm.