2008: K. Jefferis, A. Kinghorn, H. Siphambe & J. Thurlow “Macroeconomic and Household Level Impacts of HIV/AIDS in Botswana”, AIDS 2008, 22 (suppl), S113-S119

2007: K. Jefferis. “Enhancing Access to Financial Services in Botswana”, Econsult Botswana/FinMark Trust

2007: K. Jefferis, “The Process of Monetary Integration in the SADC Region”, Journal of Southern African Studies, 33(1), pp.83-106.

2005: K. Jefferis & G. Smith, “The Changing Efficiency of African Stock Markets” South African Journal of Economics, 73(1), pp.54-67.

2004: K. Jefferis & G. Smith, “Capitalisation and Weak-Form Efficiency in the JSE Securities Exchange”, South African Journal of Economics, 72(4), pp.684-707.

K. Jefferis, S. Kgosi, M. Robotham & J. Kgoadi, “Electronic Money Developments” Bank of Botswana Research Bulletin, 22(1).

K. Jefferis, R. Greener & H. Siphambe, The Macroeconomic Impact of the HIV/AIDS Epidemic in Botswana”, Botswana Journal of Economics 1(1), pp.49-65.

2003: K. Jefferis, “The Process of Monetary Integration in the SADC Region”, Bank of Botswana Research Bulletin, 21(2), 2003. Originally presented to the Symposium of the Association of African Central Bank Governors (AACB), Kampala, Uganda, August.

2002: K. Jefferis, G. Smith & H. Ryoo, “African Stock Markets: Multiple Variance Ratio Tests of Random Walks”, Applied Financial Economics 12, pp.475-484.

K. Jefferis & K. Mbekeani, “Laws Institutions and Capital Market Integration”, in Regional Integration in Africa, OECD, Paris, May 2002. Originally presented to the Second International Forum on African Perspectives, OECD Development Centre/African Development Bank, Paris, March.