Why wages differ For each of the scenarios in the following table, indicate the most likely reason for the difference in earnings. Scenario Differences in Skills and Human Capital Differences in Job Preferences Age Differences in Worker Preferences Beth, a 50-year-old doctor with 20 years of experience, earns more than Darnell, a 30-year-old doctor just out of medical school with the same skills and field of specialization. Yvette earns an annual salary of $70,000 as a financial analyst for a large accounting firm. Bob works in a similar position (with similar experience and productivity) as Yvette but for a rival accounting firm that offers its employees free child care and a free gym at work. Bob earns a salary of $55,000 per year. An economics consulting firm hires Neha, a recent Ph.D. graduate in economics, and pays her an annual wage of $75,000. It also hires Andrew, a recent master's degree graduate in economics, and pays him an annual wage of $63,000. Two security guards have the same amount of schooling and work experience but earn different wages. One of them works for a prison and earns an annual wage of $55,000 per year. Another works for a museum and