Gu\u00f0r\u00fan Johnsen er r\u00e1\u00f0gjafi yfirstj\u00f3rnar Danmarks Nationalbank og yfirumsj\u00f3narma\u00f0ur bankans \u00ed m\u00e1lefnum AGS og BIS. \u00c1 n\u00e1msferli s\u00ednum starfa\u00f0i h\u00fan sem lektor \u00ed fj\u00e1rm\u00e1lum hj\u00e1 CBS, H\u00e1sk\u00f3la \u00cdslands og H\u00e1sk\u00f3lanum \u00ed Reykjav\u00edk 2006-2023. \u00c1 \u00e1runum 2013-2023 var h\u00fan rannsakandi vi\u00f0 Lagadeild H\u00e1sk\u00f3lans \u00ed \u00d3sl\u00f3 og fr\u00e1 2023 hj\u00e1 CBS PeRCent. \u00c1\u00f0ur en Gu\u00f0r\u00fan h\u00f3f st\u00f6rf \u00ed h\u00e1sk\u00f3lasamf\u00e9laginu starfa\u00f0i h\u00fan hj\u00e1 peningam\u00e1la- og marka\u00f0ssvi\u00f0i Al\u00fej\u00f3\u00f0agjaldeyrissj\u00f3\u00f0sins \u00e1 \u00e1runum 2004-2006 vi\u00f0 t\u00e6knilega a\u00f0sto\u00f0 og ranns\u00f3knir m.a. \u00e1 \u00fatl\u00e1na\u00feenslu.
\n\u00cd kj\u00f6lfar fj\u00e1rm\u00e1lakreppunnar miklu var Gu\u00f0r\u00fan r\u00e1\u00f0in af Ranns\u00f3knarnefnd Al\u00feingis sem yfirrannsakandi til a\u00f0 kanna orsakir og atbur\u00f0i sem leiddu til falls \u00edslenska bankakerfisins \u00e1ri\u00f0 2008. H\u00fan hefur v\u00ed\u00f0t\u00e6ka stj\u00f3rnarreynslu \u00ed fj\u00e1rm\u00e1lageiranum, h\u00fan \u00e1tti m.a. s\u00e6ti \u00ed stj\u00f3rn L\u00edfeyrissj\u00f3\u00f0s verslunarmanna \u00e1 \u00cdslandi 2019-2023 og var varaforma\u00f0ur stj\u00f3rnar Arion banka 2010-2017.
\nGu\u00f0r\u00fan er stofnf\u00e9lagi og fyrrverandi stj\u00f3rnarforma\u00f0ur Transparency International \u00e1 \u00cdslandi.\u00a0Gu\u00f0r\u00fan er me\u00f0 doktorsgr\u00e1\u00f0u \u00ed hagfr\u00e6\u00f0i fr\u00e1 \u00c9cole Normale Sup\u00e9rieure \u00ed Par\u00eds, MA gr\u00e1\u00f0u \u00ed t\u00f6lfr\u00e6\u00f0i og MA gr\u00e1\u00f0u \u00ed hagn\u00fdtri hagfr\u00e6\u00f0i fr\u00e1 University of Michigan, Ann Arbor, auk BA gr\u00e1\u00f0u \u00ed hagfr\u00e6\u00f0i fr\u00e1 H\u00e1sk\u00f3la \u00cdslands. Fr\u00e6\u00f0asvi\u00f0 hennar eru r\u00e9ttarhagfr\u00e6\u00f0i, stofnanahagfr\u00e6\u00f0i, fj\u00e1rm\u00e1l fyrirt\u00e6kja og atvinnuvegahagfr\u00e6\u00f0i. N\u00faverandi ranns\u00f3knir hennar beinast a\u00f0 stj\u00f3rnarh\u00e1ttum l\u00edfeyrissj\u00f3\u00f0a, l\u00f6gs\u00f3knum l\u00edfeyrissj\u00f3\u00f0a, \u00fatl\u00e1na\u00e1h\u00e6ttu fyrirt\u00e6kjasamst\u00e6\u00f0a og kynbundinni \u00e1h\u00e6ttuf\u00e6lni \u00ed fj\u00e1rm\u00e1lastj\u00f3rnun fyrirt\u00e6kja. Gu\u00f0r\u00fan hefur skrifa\u00f0 miki\u00f0 um hvatakerfi, \u00fatl\u00e1nav\u00f6xt, bankabresti og fj\u00e1rm\u00e1last\u00f6\u00f0ugleika. H\u00fan er h\u00f6fundur b\u00f3karinnar \u201eBringing Down the Banking System: Lessons from Iceland\u201c sem Palgrave-Macmillan gaf \u00fat \u00e1ri\u00f0 2014.<\/p>\n