A National Park Service publication sets the stage for the walk: “Each rock layer represents a period ... A geologic cross section of the Grand Canyon, described along the Trail of Time ...

A swap is an agreement between two parties to exchange cash flows for a set period of time. At the time the contract is initiated, the value of at least one of the assets being swapped is ...

He slept poorly, made no time to exercise, and seldom ate healthy meals, instead grabbing a bite to eat on the run or while working at his desk. Explore HBR HBR Store About HBR Manage My Account ...