Thanks in part to research by Reinhart and Rogoff, we know that excessive leverage is unsustainable, and that restoring balance takes time. As a result, questions and doubts remain about an eventual return to the pre-crisis trend line for GDP, and especially for employment.
部分得益于莱恩哈特和罗格夫的研究，我们知道过度杠杆化是不可持续的，恢复平衡也需要时间。因此人们仍然会怀疑GDP尤其是就业水平是否能恢复到危机前的趋势水平上。