With reference to his statement in his Budget Vote Debate No 39, Rural Development and Land Reform, Appropriation Bill on 8 May 2015, regarding the 50/50 proposal, (a) can he provide the accredited (i) research and/or (ii) impact studies used by his department in determining the impact of the 50/50 proposal on (aa) food security, (bb) jobs and employment, (cc) land values and (dd) the financial sector and (b) what is the full academic reference in each case?