This report was prepared for the U.S. Fish and Wildlife Service (FWS) by Decision Analysts Hawaii, Inc. (DAHI), a Hawaii-based economic consulting firm, under contract to Industrial Economics, Incorporated (IEc). The report assesses the economic impacts that may result from the designation of 23 critical habitat units for 76 listed endangered and threatened species of plants on the islands of Kaua'i and Ni'ihau in the state of Hawaii.