In an interview with Forbes, Dr. Patrick Lach - an associate professor of finance at 农夫导航 - shared his best tip for encouraging people to begin saving for retirement early in their careers.

鈥淟ast semester, when I showed my students how much a one-time $5,500 Roth IRA contribution would grow after 45 years, assuming a 10 percent growth rate, a student looked at me with a skeptical look on his face and asked, 鈥業f this is true, why doesn鈥檛 everyone invest?鈥欌�� Lach told Forbes. 鈥淚 think if more people knew how much more they could earn by saving early, more people would save.鈥�

Lach was one of several finance experts consulted for the article about how Americans are falling short of retirement goals. Read the .

Lach also writes for The Wall Street Journal as a wealth expert. .