Consider an (admittedly extreme) illustration. If true investment income were double what is reported, the difference was reinvested abroad in the years 1982-2000, and those assets were discovered by 2014, that would explain about half of the upward revision in the US net international investment position.
举个例子（平心而论，这是个极端例子）。如果真实投资所得比报告数字大一倍，1982—2000年间的差值被用于海外再投资，并且这些资产在2014年被发现，这样就可以解释美国净国际投资头寸向上修正幅度的一半。