Iyakar Amurka da Meksiko ta wasu muhimman hanyoyi ne na sabani. Layin da aka keɓe yana bayyana dangantakar siyasa da soja, amma ba ta bayyana dangantakar tattalin arziki ko al'adu ba. Ƙasashen kan iyaka -- kuma suna tafiyar ɗaruruwan mil zuwa cikin Amurka a wasu wurare - suna da kusancin al'adu da tattalin arziki da Mexico. Inda akwai hanyoyin haɗin gwiwar tattalin arziki, koyaushe akwai motsi