"But as millennials enter the workforce, more companies are jumping through hoops to accommodate their demands for faster promotions, greater responsibilities and more flexible work schedules—much to the annoyance of older co-workers who feel they have spent years paying their dues to rise through the ranks. Employers, however, say concessions are necessary to retain the best of millennials, also known as Generation Y, which is broadly defined as those born in the 1980s and 1990s. They bring fresh skills to the workplace: they’re tech-savvy, racially diverse, socially interconnected and collaborative. Moreover, companies need to keep their employee pipelines full as baby boomers enter retirement.
[…]
The annual turnover rate among millennials has since fallen by 50% each year for the last two years, Mr. Rosensweig said. “If they don’t feel like they’re making a contribution to a company overall quickly, they don’t stay,” he said. “If you provide them with the right environment, they’ll work forever, around the clock."

More Firms Bow to Generation Y’s Demands - WSJ.com

So, what they’re saying is, ‘Gen Y’ is acting in an economically rational manner, by acting in their own best interests and not pouring their hearts and souls into companies that don’t care about them, only companies that are willing to reciprocate?