Avoid the trap of being in conflict with another high-performing co-worker, as this tension can negatively affect the team as a whole, Karin Hurt writes. Give credit where credit is due and sort out animosity by getting to know your colleague.

Research suggests that the amount of lies and omissions told during negotiations depends on the gender mix and what's at stake, write Horacio Falcao and Alena Komaromi. "We should also double check critical information by asking questions and requiring data, particularly in scenarios that raise the risk of deception," they write.

Mastering small talk allows you to connect with others, calms your nerves and builds courage. Stick with less controversial topics to spark conversations, such as the weather or sports, Aimee Lutkin writes.

The idea that because of Social Security benefits retirement income doesn't reflect the inequality in workers' earnings is wrong, according to a report from the Urban Institute that was funded by the Labor Department. Because Social Security benefits, defined contribution plans and most other retirement saving products are based upon earnings, inequality in earnings will follow workers into retirement, the report finds.

Invest 10 to 15 hours per week to job searching, recommends David Jensen, founder of CareerTrax. Simply submitting a few LinkedIn invitations and online job applications won't be enough, he writes.

Artificial intelligence may take the human unconscious bias out of the hiring equation. "While no algorithm is ever guaranteed to be foolproof, I believe it is vastly better than humans," says Rich Joffe, founder of AI hiring company Stella.ai.

People using online dating sites tend to initiate conversations with users who are roughly 25% "more desirable" than themselves, finds a study published in Science Advances. Men can expect, on average, one response for every five messages they send to women who are higher on the dating hierarchy, the study estimates.