Sen. Bernie Sanders, I-Vt., says he was unaware of allegations of sexual misconduct and pay disparity during his 2016 presidential run. Sanders has apologized to women and says protocols regarding sexual harassment were implemented for his 2018 re-election bid.

Sixty percent of employers say a tight hiring market has lengthened the time it takes to fill jobs, according to a CareerBuilder survey. Employers can speed up the process by investing in an applicant-tracking system and by making applications short and mobile friendly, among other tactics.

A law that took effect Tuesday bars employers in Hawaii from asking job candidates about wage history. The law also prohibits employers from using salary information obtained through background checks to set wages for hires.

Use wearable technology to identify employee health risks, track activity and determine strategies to improve well-being, write Glenn Rankin, Nick Court and Paul Nash. "The more sophisticated apps will allow you to build in bespoke incentives, tailored to the nature of your business and budget," they write.

Some of the top soft skills, based on LinkedIn data, include creativity and the ability to be persuasive. Data suggests that hard skills are also important heading into 2019, such as cloud computing intelligence and expertise in machine learning.