1. Abumere SI, Arimah BC, Jerome AT (1998) The informal sector in Nigeria’s development process. Research Report 1, Development Policy Centre, Ibadan
2. Ajakaiye O, Akerele WO (1996) Overview of conceptual and methodological issues in informal sector research. In: Olisadebe EU, Ajakaiye O (eds) Conceptual and methodological framework for informal sector research in Nigeria. CBN/NISER Informal Sector Study, Lagos, pp 7–25
3. Akerlof G (1984) An economist’s book of tales. Cambridge University Press, Cambridge
4. Akume A, Abdullah Y (2013) Challenges and prospects of effective industrial conflict resolution in Nigeria. J Soc Sci 36(2):199–208
5. Arpaia A, Mourre G (2009) Institutions and performance in European labour markets: taking a fresh look at evidence. European Commission, Economic Papers 391, November