The key themes that defined the year behind us will also shape the one ahead. The most-read articles of 2025 tracked a return ...

Think back to middle school algebra, like 2 a + b. Those letters are parameters: Assign them values and you get a result. In ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Andy Smith is ...