In this century old institution (established in 1916), the doctoral program is set for four years maximum to defend and finish the doctoral thesis.
Most of the candidates defend and
finished with difficulties and hardship (if they are lucky and
extraordinary). Arkebe has finished within 23 months and surprised the
department of Development Studies, the university professors and
students altogether. Never heard of such great achievements in such
short period of time.
His external examiners from Cambridge
and other well known academic institutions awarded him "PASS WITH OUT
CORRECTION" on the spot; which means great distinction with great honor
(never happened and never heard of).