Concessioning authorities, concessionaires (SPCs), investors, lenders, and guarantors involved in port reform use a wide variety of economic and financial analytical tools and performance measures to evaluate the feasibility of prospective projects. Each party has a different perspective on what makes a proposed project a success and, consequently, may use somewhat different tools and measures. All measures, however, are designed to capture the economic value of the proposed project to the interested party, including an assessment of the likelihood that the full economic value will materialize (that is, taking uncertainty and risk into account).