本文认为,前危机时代,美国的经济发展模式是典型的“消费拉动型”。消费增长空间日益狭窄,使其形成了“负债过度消费拉动型”经济发展模式。该模式有明显的不可持续性,其矛盾的积累和显化引发了金融危机。奥巴马政府的“绿色能源”发展战略,能对重振美国经济产生重要作用,但是由于没有转变消费模式,解决消费增长空间狭窄问题,因而有局限性,难以根除危机隐患。 This paper argues that in the pre-crisis era, the economic development model of the United States is typical “consumer-driven”. Increasingly narrow the space for growth in consumption, making it a “debt-over-consumption-driven” mode of economic development. This model is obviously unsustainable, and the accumulation and development of its contradictions have triggered the financial crisis. The “green energy” development strategy of the Obama administration can play an important role in revitalizing the U.S. economy. However, it has been difficult to eradicate the crisis because it has not changed its mode of consumption and solved the problem of narrow space for growth in consumption.