"…there is a fundamental tension between the program objectives of reducing debt and improving competitiveness, in that the internal devaluation needed to restore Greece competitiveness will inevitably lead to a higher debt to GDP ratio in the near term. In this context, a scenario of particular concern involves internal devaluation through deeper recession (due to continued delays with structural reforms and with fiscal policy and privatization implementation). This would result in a much higher debt trajectory, leaving debt as high as 160 percent of GDP in 2020. Given the risks, the Greek program may thus remain accident-prone, with questions about sustainability hanging over it."