PwC, the World Bank, and International Finance Corporation (IFC) launched the Paying Taxes 2011 report to measure the ease of paying taxes by assessing the administrative burden for companies to comply with tax regulations, and by calculating companies' total tax liability as a percentage of pre-tax profits. According to the study, nearly 60 percent of the world's economies have made significant business regulatory changes to ease paying taxes, despite the impact of the downturn and the sluggish global recovery. The study, which looks at 183 economies, finds that in the past year, 40 countries have made it easier to pay taxes, with Tunisia improving the most. Moreover, the study shows that paying taxes is easiest for businesses in high-income economies with the lowest tax cost and the lowest administrative burden, as well as more mature tax systems. Available video includes soundbites from Susan Symons (PwC) and Neil Gregory (World Bank), as well as general views of PwC headquarters.