▁curves ▁will ▁intersect ▁is ▁notice able , ▁as ▁illustrated ▁in ▁Figure ▁ 8 . ▁In ▁this ▁case , ▁none ▁of ▁the ▁alloc ations ▁is ▁strictly ▁more ▁robust ▁than ▁the ▁other : ▁for ▁critical ▁reven ues ▁smaller ▁than ▁the ▁crossing ▁point , ▁allocation ▁ ▁is ▁more ▁robust ▁than ▁allocation ▁, ▁while ▁the ▁other ▁way ▁around ▁holds ▁for ▁critical ▁reven ues ▁higher ▁than ▁the ▁crossing ▁point . ▁That ▁is , ▁the ▁preference ▁between ▁the ▁two ▁alloc ations ▁depends ▁on ▁the ▁criter ion ▁of ▁failure ▁– ▁the ▁critical ▁re venue . ▁ ▁O pport un eness ▁Suppose , ▁in ▁addition ▁to ▁the ▁threat ▁of ▁losing ▁your ▁job , ▁the ▁senior ▁management ▁offers ▁you ▁a ▁car rot : ▁if ▁the ▁reven ues ▁are ▁higher ▁than ▁some ▁re venue , ▁you ▁will ▁be ▁awarded ▁a ▁considerable ▁bonus . ▁Although ▁reven ues ▁lower ▁than ▁this ▁re venue ▁will ▁not ▁be ▁considered ▁to ▁be ▁a ▁failure ▁( as ▁you ▁may ▁still ▁keep ▁your ▁job ), ▁a ▁higher ▁re venue ▁will ▁be ▁considered ▁a ▁wind fall ▁success . ▁We ▁will ▁therefore ▁denote ▁this ▁threshold ▁by ▁wind fall ▁re venue . ▁ ▁For ▁any ▁given ▁allocation , ▁the ▁opportun eness ▁of ▁the ▁allocation , ▁with ▁respect ▁to ▁the ▁critical ▁re venue , ▁is ▁the ▁minimal ▁uncertainty ▁for ▁which ▁it ▁is ▁possible ▁for ▁the ▁total ▁re venue ▁to ▁exceed ▁the ▁critical ▁re venue . ▁This ▁is ▁demonstrated ▁in ▁Figure ▁ 9 . ▁If ▁the ▁uncertainty ▁will ▁decrease , ▁the ▁en velope ▁of ▁uncertainty ▁will ▁become ▁less ▁inclus ive , ▁to ▁exclude ▁all ▁instances