8169b

• UCREFRP Catalog Number: 8169b
• Author: Brookshire, D. S., M. McKee and G. Watts.
• Title: Draft Economic Analysis of Proposed Critical Habitat Designation in the Colorado River Basin for the RRazorback Sucker, Humpback Chub, Colorado Squawfish, and Bonytail.
• USFW Year: 1993.
• USFW - Doc Type: \
• Copyright Material: NO

Second, the economic sectors that may be affected based upon the potential alteration of
management activities were identified. These include the agricultural, hydroelectric,
mining/gas/oil, recreation, municipal, and industrial sectors. In addressing the potential
alteration of management activities such as water use by activity, the economic analyses do
not address Colorado River Compact allocations. Compact issues such as tribal water rights,
intra-State and inter-State transfers and water marketing are beyond the scope of the
analyses. The USFWS has always worked within existing State water law in obtaining and
legally protecting instream flow for fishes.
Third, the economic analysis involved the use of a series of model stages. Since there were
no existing economic models capable of making such assessments, models were constructed
specifically for this project. For each of the seven States an input-output model with 20
specific economic sectors, was developed. Using the same 20 sectors, an input-output model
for the basin as a whole was developed. In addition, a computable general equilibrium
model, with 19 economic sectors, was developed. These modeling frameworks were chosen
after discussions with USFWS biologists regarding the potential listing and designation
effects of the endangered fishes.
The set of input-output models employed in this project is part of a staged investigation
wherein each stage is intended to address particular issues. The initial stage is a separate
model for each of the States in the affected region: Arizona, California, Colorado, Nevada,
New Mexico, Utah, and Wyoming. This stage focuses on the impacts that may be generated
by proposed critical habitat designations within each individual State.
Impacts in a given State may generate responses in neighboring States, and thus it is
necessary to investigate potential offsetting impacts in the larger regions. For this reason, a
second stage was undertaken in which an input-output model was constructed for the entire
region (all seven States). This model stage computes regional economic impacts at the State
and Colorado Basin level.
II-1-3