2 0 0 6 , ▁von ▁H agen ▁has ▁directed ▁the ▁Institute ▁for ▁International ▁Econom ic ▁Policy . ▁ ▁Prof ession ally , ▁von ▁H agen ▁is ▁affili ated ▁with ▁the ▁European ▁Econom ic ▁Association ▁and ▁the ▁Centre ▁for ▁Econom ic ▁Policy ▁Research ▁- ▁of ▁which ▁he ▁is ▁a ▁fellow ▁- ▁as ▁well ▁as ▁with ▁the ▁National ▁Academy ▁of ▁Sciences ▁Leopold ina . ▁Additionally , ▁he ▁is ▁also ▁affili ated ▁with ▁the ▁American ▁Econom ic ▁Association , ▁E con ometric ▁Society , ▁and ▁the ▁Verein ▁für ▁Social polit ik . ▁Moreover , ▁von ▁H agen ▁performs ▁editor ial ▁duties ▁for ▁a ▁number ▁of ▁academic ▁journ als , ▁including ▁the ▁European ▁Journal ▁of ▁Political ▁Econom y , ▁Journal ▁of ▁M oney , ▁Cred it ▁and ▁Bank ing ▁and ▁the ▁Scottish ▁Journal ▁of ▁Political ▁Econom y ▁and ▁previously ▁worked ▁as ▁editor ▁for ▁the ▁European ▁Econom ic ▁Review . ▁Finally , ▁von ▁H agen ▁has ▁acted ▁as ▁a ▁consult ant ▁for ▁many ▁international ▁organizations , ▁including ▁the ▁International ▁Mon et ary ▁Fund , ▁World ▁Bank , ▁Federal ▁Reserve ▁Bank , ▁and ▁European ▁Commission . ▁ ▁Research ▁ ▁J ürgen ▁von ▁H agen ▁is ▁one ▁of ▁the ▁leading ▁sch ol ars ▁on ▁the ▁macro e conom ics ▁of ▁European ▁integration , ▁the ▁Euro zone , ▁and ▁European ▁public ▁fin ance . ▁According ▁to ▁IDE AS / Re PE c , ▁J ürgen ▁von ▁H agen ▁belongs ▁to ▁the ▁top ▁ 2 % ▁of ▁econom ists . ▁ ▁European ▁public ▁fin ance ▁▁ ▁After ▁early ▁work ▁on ▁the