This document discusses generational differences in the workplace based on a 2014 SHRM report. It outlines three main age groups - Millennials born 1981-1997, Gen X born 1960-1980, and Baby Boomers born 1946-1964. By 2020, Millennials will make up 46% of the workforce and fill many leadership roles. Employers will need to consider different priorities around benefits, career growth, and flexibility to attract and retain each generation. Retention strategies should focus on flexibility, technology, and development for Millennials, independence and entrepreneurship for Gen X, and stable schedules and healthcare for Baby Boomers.