While learning, people do retain some self-knowledge of how they remember, what they are likely to forget, and how they should reinforce what they have learned. That finding comes from research conducted by Billur Gorgulu, a PhD Candidate with the Department of Economics. A behavioural economist, Gorgulu studies how people make decisions and the factors that influence decision-making. Behavioural economics is differentiated from other branches of the discipline by the use of laboratory experiments to test theoretical models of how people will make choices given a particular situation or set of conditions.