I-Jamani ililizwe lesi-ne ngoqoqosho oluphezulu ngokwe-nominal GDP kwihlabathi lonke liphela ize iphinde ibelilizwe lesihlanu elinamandla okuthenga athe chatha. Njengentshali yehlabathi kwiinkampani zemveliso nezeteknoloji]] lilizwe lesibini ubukhulu ekuthumeleni iimpahla kwamanye amazwe iphinde ibe lelesithathu ubukhulu ilizwe elirhweba impahla kwamanye amazwe lize nayo ekhaya. Lilizwe eliphuhlileyo kunjalo umgangatho wentlalo yakhona uxhomile, uneempawu zokhuseleko lwentalo oluluqilima olubandakanya inkqubo ejongene nezempilo nekuyinkqubo yakudala yehlabathi lonke jikelele. Laziwa ngokutyeba kwezamasiko nakwezembali yezopolitiko, iJamani ibisakuba likhaya leengcali ezinefuthe, abadidiyeli beengoma, abaphandi, kunye nabayili. I-Jamani yayililungu labaphandi ekuhlaleni kwaseYurophu ngo-1957, apho yaba yi-EU ngo-1993. Ikwayinxalenye yengingqi [iSchengen|yaseSchengen]], kwaye ibe ililungu le-eurozone ukususela ngo-1999. I-Jamani ingamandla amakhulu, ikwalilungu leziZwe eziManyeneyo, le-NATO, le-G8, le-G20, e-OECD kunye nososiba waseYurophu.