How employers are making it harder to get jobs

There might be a reason you keep getting rejected from that dream job — and it's not because you're underqualified. A new study from Harvard Business School shows that employers are raising the bar for new hires, asking for better academic qualifications than the person who currently holds the job. For example, 67 percent of job postings for production supervisors in 2015 required a college degree — but only 16 percent of those who already had the job actually had a degree. That means...