This video is a part of Conservation Strategy Fund's collection of environmental economic lessons and was made possible thanks to the support of the Gordon and Betty Moore Foundation and the Marcia Brady Tucker Foundation. This series is for individuals who want to learn - or review - the basic economics of conservation. In this video, you will learn how to treat costs and benefits that have happened in the past (i.e. sunk costs), how to analyze alternatives, and problems with discounting long-term. To follow this series, subscribe to our YouTube channel. For more information on these and other trainings from Conservation Strategy Fund, check out: www.conservation-strategy.org/