This paper outlines the traditional uses of input-output (I/O) modeling in watershed programs planned under federal "Principles and Guidelines." Generally, the national economic development costs and benefits are analyzed, and the I/O model is used to track on regional economic development...

Although water quality is a valid purpose for watershed projects under the PL83-566 Watershed Protection and Flood Prevention Act, historically very few water quality projects have ever been implemented in Arizona. This is largely due to the difficulty in measuring "non-controversial" monetary...