With reference to his statement on land ceilings in his Debate on Vote 39, Rural Development and Land Reform, Appropriation Bill, on 8 May 2015, can he provide the accredited (a) research or (b) impact study or studies used by his department in determining the impact of the land ceiling proposals on (i) food security, (ii) jobs and employment, (iii) land values and (iv) the financial sector and (c) what is the full academic reference in each case?