NFFI

The difference between a nation’s gross national product (GNP) and gross domestic product (GDP). Net foreign factor income (NFFI) is the difference between the aggregate amount that a country’s citizens and companies earn abroad, and the aggregate amount that foreign citizens and overseas companies earn in that country. In mathematical terms, NFFI = GNP - GDP.

The NFFI level is generally not substantial in most nations, since factor payments earned by their citizens and those paid to foreigners more or less offset each other. However, the NFFI's impact may be significant in smaller nations with substantial foreign investment in relation to their economy and few assets overseas, since their GDP will be quite high compared to GNP.