Although the Kiatti have their share of sculptors, engineers, and mercenaries, they are perhaps best known as traders. Kiatti vessels are welcome in many places, for they bring delightfully disruptive theories of government, fossilized musical instruments, and fine surgical tools; they bring cold-eyed guns that whisper of sleep impending and sugared atrocities. If you can describe it, so they say, there is a Kiatti who is willing to sell it to you.
In the ordinary course of things, the Kiatti accept barter for payment. They claim that it is a language that even the universe understands. Their sages spend a great deal of time attempting to justify the profit motive in view of conservation laws. Most of them converge comfortably on the position that profit is the civilized response to entropy. The traders themselves vary, as you might expect, in the rapacity of their bargains. But then, as they often say, value is contextual.
The Kiatti do have a currency of sorts. It is their stardrives, and all aliens’ stardrives are rated in comparison with their own. The Kiatti produce a number of them, which encompass a logarithmic scale of utility.
When the Kiatti determine that it is necessary to pay or be paid in this currency, they will spend months—sometimes years—refitting their vessels as necessary. Thus every trader is also an engineer. The drives’ designers made some attempt to make the drives modular, but this was a haphazard enterprise at best.
One Kiatti visionary wrote of commerce between universes, which would require the greatest stardrive of all. The Kiatti do not see any reason they can’t bargain with the universe itself, and are slowly accumulating their wealth toward the time when they can trade their smaller coins for one that will take them to this new goal. They rarely speak of this with outsiders, but most of them are confident that no one else will be able to outbid them.