Understanding and addressing the potential distributional impacts of biodiversity policies and reforms are important to ensure their political acceptability and success (OECD, 2008). A study of Eastern Cape in South Africa, for example, showed that a change from livestock forming to eco-tourism resulted in the doubling of the number of jobs per hectare and a fourfold increase in income per hectare (OECD, 2013c). Finally, information on existing biodiversity finance, including needs and gaps, is also required to help plan and implement effective mainstreaming policies (discussed in Section 2.6). While a number of these have been undertaken, they vary greatly in terms of their objectives, scope and type.28 An example of a high-quality National Biodiversity Assessment (NBA) is that of South Africa (DEA and SANBI, 2011) which is at the forefront of international practice in terms of methodology, quality of data and level of analysis (OECD, 2013c). It presents the state of biodiversity across terrestrial, freshwater, estuarine and marine environments.