A recent study by the US-based Columbia Institute for Tele-Information (CITI) has concluded that Senegal’s telecoms industry generates 10.6% of the African nation’s GDP, Agence Ecofin reports. According to the study, the influence of the communications sector also extends more widely, given its positive influence on the development of other industries, and is estimated to represent 23% of Senegal’s overall economic growth. Dr Raul Katz, director of research at the agency, notes too that the proposed introduction of a fourth mobile operator would be unproductive in a heavily penetrated market dominated by three players – Orange, Tigo and Expresso.