F ST is a property of the distribution of allele frequencies among populations. It reflects the joint effects of drift, migration, mutation and selection on the distribution of genetic variation among ...

Defined benefit plans guarantee a set retirement payout, reducing investment risk for employees. These plans are rare in the private sector, with employers bearing the majority of funding and risk.

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

401(k) is a type of defined contribution plan with varying contribution limits based on age. Employers may match 401(k) contributions; withdrawals before age 59 1/2 can incur penalties. Other defined ...