The government has taken steps to improve the country's economic standing through diversification and various reforms and investment incentives. Despite this, the IMF describes PNG's business environment as 'poor'; while the World Bank has ranked it 119th on its 2016 'Ease of Doing Business' country rankings. Even though the mineral and petroleum sectors have brought in substantial revenues, PNG still lags at the bottom of key development indicators. Private sector growth is minimal due to structural constraints and the overall entrepreneurial environment has also suffered from macroeconomic instability and low investment.