Section 6 then shows the results obtained from the econometric work and Section 7 concludes by providing a brief discussion of the key policy implications of the findings. In parallel, income inequality has risen in a large number of OECD countries and some emerging economies (OECD, 2011a, OECD, 2014) and become, once again, a hotly debated policy concern (OECD, 2008, OECD, 201 la, OECD 2013b). Economic analysis can help identify some of the potential sources of inequality—including international trade— as well as establish links between inequality and other measures of economic performance such as, for example, economic growth.