Definition: Balance of exports and imports
Purchasing power parities
The f.o.b. (Free on board) value of exports of goods and services less the f.o.b. value of imports of goods and services. If no distinction between goods and services is required, it may be defined as the f.o.b. value of exports of goods and services less the c.i.f. (cost-insurance-freight) value of imports of goods and services.
Eurostat, Organization for Economic Cooperation and Development (OECD), "Eurostat-OECD Methodological Manual on Purchasing Power Parities", Publications Office of the European Union, Luxembourg, 2012