A merger of CVS and Aetna would create a health-care behemoth and put huge pressure on standalone players such as Express Scripts Holding Co. and Walgreens Boots Alliance Inc.

Retirement planning for singles is slightly different than for couples.

On Twitter this week, Nobel laureate Richard Thaler staked out an unpopular position on the question of whether Congress should limit pre-tax contributions to 401(k)s as a part of tax reform.

If the current Affordable Care Act employer coverage reporting rules stay in place, the Internal Revenue Service has to do something to ease employers' desperation over getting accurate Social Security numbers for the employees' spouses, children and other dependents.