The case begins with some kinks in recent data. Rising GDP has not led to the fall in unemployment predicted by Okun’s Law, established in the 1960s by Arthur Okun, an economist.

这一担忧源于最近一些反常的数据：上升的GDP并没有降低失业率，这有违奥肯定律（20世纪60年代经济学家阿瑟奥肯得出）。