Bonner, K., M. Anyadike-Danes and E. O'Malley (2007). Who Exports? A Firm-Level Study of the Characteristics of Exporters and the Determinants of Export Performance for Northern Ireland and the Republic of Ireland, Belfast: Economic Research Institute of Northern Ireland /The Economic and Social Research Institute, https://www.esri.ie/publications/who-exports-a-firm-level-study-of-the-characteristics-of-exporters-and-the