More intensive M&E approaches are also outlined such as cost-benefit analysis and impact evaluation. With respect to the Bank’s M&E system, the review concludes that there has been an uneven record in strengthening the quality of performance information needed for a better assessment of results. To achieve improved results, the World Bank needs to better track indicators for projects across sectors, strengthen monitoring and reporting of outcomes, and build the capability to collect information at the country, regional, and global levels (World Bank, 2009c).