As a result, nonprofit organizations operating in the second decade of the twenty-first century face a dizzying array of approaches and tools for measuring performance, including balanced scorecards, cost effi- ciency metrics, financial ratios, logic models, Social Return on Investment (SROI) calculations, cost–benefit analyses (CBAs), and participation in rigorous random assignment, control group research studies. One of these approaches, the SROI metric, is essentially a CBA that estimates the value of the benefits created by the social sector initiative (the outcomes) and places them over the costs of the initiative (the inputs or investment). SROI goes a step further than a Cost-Effectiveness Analysis, which simply estimates the cost per impact (i.e. the cost per person cured of malaria), as the outcomes are monetized.