Previously known as Gross National Product, Gross National Income comprises the total value of goods and services produced within a country (i.e. its Gross Domestic Product), together with its income received from other countries (notably interest and dividends), less similar payments made to other countries.
For example, if a British-owned company operating in another country sends some of their incomes (profits) back to UK, UK’s GNI is enhanced. Similarly, a British production unit of an American company sending profit to America will reduce UK’s GNI.