ors , ▁absolute ▁control ▁of ▁the ▁port ▁of ▁Buenos ▁Aires ▁as ▁the ▁sole ▁source ▁of ▁income ▁from ▁national ▁custom s , ▁British ▁explo itation ▁of ▁the ▁national ▁natural ▁resources , ▁and ▁a ▁Un itar ist ▁national ▁organization ▁cent red ▁in ▁Buenos ▁Aires . ▁After ▁Riv ad avia ▁res igned ▁in ▁ 1 8 2 7 , ▁ending ▁the ▁" h appy ▁experience ", ▁the ▁federal ist ▁Manuel ▁Dor re go ▁assumed ▁power ▁as ▁governor ▁of ▁Buenos ▁Aires , ▁but ▁was ▁soon ▁executed ▁by ▁the ▁un itar ist ▁Juan ▁Lav alle ▁during ▁a ▁military ▁coup . ▁ ▁The ▁exports ▁of ▁gold , ▁allowed ▁by ▁the ▁free ▁trade ▁policies , ▁soon ▁de ple ted ▁the ▁national ▁res erves . ▁This ▁pos ed ▁a ▁great ▁problem , ▁as ▁gold ▁was ▁the ▁medium ▁of ▁exchange ▁of ▁the ▁local ▁economy . ▁Riv ad avia ▁sought ▁to ▁fix ▁it ▁by ▁establish ing ▁the ▁" Dis count ▁Bank ", ▁a ▁central ▁bank ▁for ▁printing ▁fi at ▁money . ▁Like ▁a ▁number ▁of ▁other ▁central ▁banks ▁world wide , ▁this ▁bank ▁was ▁not ▁owned ▁by ▁the ▁state , ▁but ▁by ▁private ▁invest ors , ▁British ▁in ▁this ▁case . ▁ ▁The ▁report ▁of ▁the ▁American ▁John ▁Murray ▁For bes ▁to ▁John ▁Qu in cy ▁Adams , ▁sixth ▁President ▁of ▁the ▁United ▁States , ▁in ▁ 1 8 2 4 ▁mentioned ▁that ▁Britain ▁had ▁a ▁huge ▁influence ▁in ▁the ▁economic ▁power ▁of ▁the ▁country . ▁ ▁He ▁mentioned ▁that ▁the ▁government ▁in ▁Buenos ▁Aires ▁was ▁so ▁eager ▁to ▁be ▁on ▁good ▁terms