Pay Foreign Phone Exporters in Yak Doubloons

You contact cell phone exporters in New Bells, Vox, and Sans Fil. They are all eager to sell you their unique, high-quality phones. But none will take payment in doubloons, Yak's own money. They can't spend doubloons in their own countries. Your currency is worthless outside of Yak. Doubloons are therefore known as a "soft currency."

The exporters all tell you that you could pay them in shillings instead. The shilling is the currency of Zedland, another, more distant, country. Zedland's economy is so strong that its currency is trusted all over the world. Shillings are known as "hard currency" because they have value outside the country they come from.