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 ...

A year after the Trump administration blocked money that had been awarded by Congress for clean energy projects, the legal fight over the funds rages on. By Claire Brown But the case against the ...

Marginal cost measures the cost of producing one more unit of a good. Zero marginal cost occurs when extra units can be produced at no additional cost. Marginal costs include variable costs and can ...

This successor to the enV is smaller, lighter and more stylish. Features are almost identical to the enV, including 2 megapixel camera, stereo Bluetooth, QWERTY keyboard, QVGA main display, EVDO data, ...