答案关键取决于各个国家和国际社会如何面对重要的政策挑战：通过宏观经济政策和早就应该实行的改革，解决全球不平衡的问题；负担老龄化人口的花费；加强对经济和金融危机的防卫；解决减少贫困这一迫切问题。
The answer depends crucially on how each country and the international community respond to key policy challenges: addressing global imbalances through macroeconomic policies and long-overdue reform; meeting the costs of aging populations; strengthening defenses against economic and financial crises; and delivering on the pressing imperatives of poverty reduction.