Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Tafiya: Rashin haraji ko wasu haraji a kan kayayyakin da ake sayarwa ba ya tabbatar da cewa suna da arha. Kudin kayayyaki iri ɗaya daga tushe daban-daban na kyauta na iya bambanta sosai. Sau da yawa suna dogara ne akan kasancewar ko babu gasar kusa, misali, shagunan filin jirgin sama, musamman idan duk a kowane filin jirgin sama mallakar kamfani ɗaya ne kamar Dufry. Har ila yau, farashin sau da yawa za a iya fitar da sama da kudin na mai saye ta saukaka, misali, a cikin-jirgin tallace-tallace da kamfanonin jiragen sama. Kamfanonin jiragen sama da yawa, kamar Emirates, El Al, Singapore Airlines, Middle East Airlines, Ukraine International Airlines, Delta, da Avianca,  Tambaya: menene zai iya haifar da hauhawar farashin?
farashin mai saye saukaka, misali, a cikin jirgin tallace-tallace da kamfanonin jiragen sama