The WTO agreement on services (General Agreement on Trade in Services –GATS–) differentiates four service provision modes. Mode 4 of GATS, which refers to the temporary transfer of workers to supply a service, is the one that offers more potential advantages to aid-receiving countries. According to data gathered by Steinberg, this profit could amount to US$80 billion per year for all developing countries, furthermore without having to bear any additional cost. In addition, the liberalisation of mode 4 would further the flow of remittances, even if only temporarily, from the developed countries to the developing.
