The Gulf countries face various economic challenges, the most important of which is the lack of economic diversification in general – and in government revenues in particular – in addition to an unsustainable path of government expenditure. These challenges are distinctive compared to what arises in advanced and developing economics; for example, the Eurozone unemployment rate in 2013 was 11%, compared to 5.1% in the Gulf countries, and Japanese public debt exceeds 200% of GDP, compared to 12.2% in the GCC countries.