xBookUtils.terms['fn_1_501'] = "For students who might need a review of basic mathematical tools, there is an appendix that provides such a review at the back of this text. Although we use only algebra throughout the chapters, several chapters have appendices that show you how the use of simple calculus skills (such as taking a first derivative) can greatly simplify the analysis.";
xBookUtils.terms['fn_1_502'] = "Dan A. Black, Seth Sanders, and Lowell Taylor, “The Economic Reward for Studying Economics,” Economic Inquiry 41, no. 3 (2003): 365–377.";
xBookUtils.terms['fn_1_503'] = "While the data available for the study dated back a few years, these patterns have been quite consistent. For example, in the 2014–2015 PayScale survey of mid-career median salaries for 207 different majors, economics ranked 19th, behind only several engineering degrees, computer science, applied math, and physics. Music was 183rd (http://www.payscale.com/college-salary-report/majors-that-pay-you-back/bachelors).";