They score it higher than the transport infrastructure, resulting in a higher international country ranking (4.57 points on a scale between 1 and 7 points), although there remains a significant quality gap with the best OECD performers (Figure 5.4). World Bank, htto://data.worldbank.orQ/data-cataloa/world-development-indicators. Labour income play ed a key role in reducing poverty and income inequality in Brazil, helped by a steady decline in unemployment. Under Brazilian labour regulations, the minimum wage is subject to the automatic indexation rule based on past inflation and increases in overall GDP (as opposed to per capita GDP).