3.1 [Related to the Economics in Practice on p. 399] Some employers offer tuition reimbursement for their employees who wish to further their education. Do a Web search to find a list of companies that contribute to tuition for their employees. Do you notice any similarities among these companies? Why might some companies choose to reimburse their employees for tuition, considering that education can be a source of wage inequality and higher levels of education often command higher wages?