Interstellar Trade
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"The Big Front Yard" by Clifford Simak. Artwork by Kelly Freas
Introduction
There is a long history of SF novels about interstellar free traders eking out a marginal existence on the fringes of the huge trader corporations, from Andre Norton's Solar Queen novels to the Space Angel series by John Maddox Roberts. Go to The Tough Guide to the Known Galaxy and read the entries "ECONOMY", "FREE TRADERS", "PIRACY", "REPLICATOR", "TRADE" and "TRADE FEDERATION".
Sometimes the traders live in large "clan-ships", developing a "trader culture." Each ship is a world, carrying the entire clan. Novels include CITIZEN OF THE GALAXY by Robert Heinlein, STAR WAYS aka THE PEREGRINE by Poul Anderson, the Cities in Flight novels of James Blish, MERCHANTER'S LUCK and FINITY'S END by C. J. Cherryh, RITE OF PASSAGE by Alexi Panshin, A DEEPNESS IN THE SKY by Vernor Vinge.
Goods
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Cyrano Jones, tribble trader. Star Trek "The Trouble with Tribbles" (1967)
Naturally, to make interstellar trade work, you need the cost of interstellar transport to be incredibly low, or the value of the trade item to be incredibly high. Or both.
Raw minerals probably are not valuable enough, it will probably be cheaper to synthesize rare elements instead of shipping them in. As for manufactured goods, why not just send the blueprints by radio or by your Dirac Poweredtm FTL Ansible communicator?
Since there does not seem to be any real-world trade item worth interstellar trade (unless it is cheaper to ship from another star than it is from another city), you will probably be forced to invent some species of MacGuffinite.
In Larry Niven's PROTECTOR, asteroid miners prospect for magnetic monopoles (which are great for constructing compact motors and generators). Dr. Robert Forward proposed prospecting for Hawking black holes. In the old SPI game StarForce, the only valuable commodity is "telesthetic" women, who are the sine qua non of FTL travel, and who cannot be mass produced by genetic engineering. In Vernor Vinge's A FIRE UPON THE DEEP, some of the main characters are traders contracted to transport part of a huge one-time pad for secure cryptographic transmissions (such a pad cannot be transmitted without compromising security). Sometimes humans and aliens discover that one man's trash is another man's treasure. And in Charles Stross' IRON SUNRISE, the most valuable things are packages of entangled quantum dots, used for FTL communication via Bell's Inequality (with the fascinating twist that the dots must be transported slower than light or they are ruined. They are shipped by Starwisp).
"You've got your own causal channel?" Frank asked, hope vying with disbelief...
..."Tiny -- it's the second memory card in my camera." She held her thumb and forefinger apart. "Looks just like a normal solid state plug. Blue packaging."...
...Alice looked over the waist-high safety wall, then backed away from the edge. "I'm not climbing down there. But a bird -- hmmmm. Think I've got a sampler head left. If it can eject the card . . . you want me to have a go? Willing to stake half your bandwidth with me if I can liberate it?"
"Guess so. It's got about six terabits left. Fifty-fifty split." Thelma nodded. "How about it?"
"Six terabits --" Frank shook his head in surprise. He hated to think how much it must have cost to haul those milligrams of entangled quantum dots across the endless light years between here and Turku by slower-than-light starwisp. Once used they were gone for good, coherence destroyed by the process that allowed them to teleport the state of a single bit between points in causally connected space-time. STL shipping prices started at a million dollars per kilogram-parsec; it was many orders of magnitude more expensive than FTL, and literally took decades or centuries of advanced planning to set up. But if it could get them a secure, instantaneous link out into the interstellar backbone nets..."
The reason trade exists is that different groups are efficient at doing different things. For example, let us say there are two countries, A and B. A takes 15 man-hours to make a widget, but only 5 to make a thingummy. B takes 5 to make a widget and 15 to make a thingummy. Suppose each country produces as many thingummies as widgets, and each has 100 man-hours to allocate. Each will then produce 5 thingummies and 5 widgets ((5*15) + (5*5) = 75 + 25 = 100 man-hours). If A and B now open trade, each may concentrate on producing the item which it produces more efficiently; A will produce thingummies and B widgets. Since a thingummy costs A 5 man-hours, it can produce 20; similarly, B produces 20 widgets. They trade 10 thingummies for 10 widgets, since each wants as many thingummies as widgets. The final result is that each country has 10 thingummies and 10 widgets and each is twice as well off as before. (Indeed, trade is even in the best interest of both when one party has an efficiency advantage in both products, because trade will allow him to shift production into areas where his efficiency is greater.)
One problem not taken into account in the above analysis is the cost of transportation (and other barrier costs, such as import and export duties) which raise the cost of doing business with another group.Arbitrage
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Star Trader (1982)
The main mechanism for trade is what is called "Arbitrage", the practice of taking advantage of a price difference between two or more markets. In this context it boils down to "buy cheap and sell dear", that is, purchase goods that are cheap at Planet A, then transport and sell them at Planet B where the goods are expensive. The money you make selling at Planet B, minus how much you spent purchasing at Planet A yields your gross profit. Subtract from that your transport expenses and other expenses and you'll find your net profit (if any).
There is also the problem of price convergence. The profit is from the price difference between the two markets. The difference tends to shrink over time, which eliminates the profit. Sometimes the market at your destination becomes saturated (as the manufacturers of Beanie Babies found out), sometimes the supply at the origin dries up (like petroleum).
In H. B. Fyfe's little classic "In Value Deceived", a alien exploration starship is searching for a way to alleviate the famine on their homeworld. They make first contact with a human starship on some barren little world. On a tour of the human's ship, they are thunderstruck when they see the hydroponic installations. It's the key to salvation for their people!
But of course they feign disinterest. They ask for one as a souvenir. They don't notice the similar disinterest with which the humans ask for an alien heating unit. The one that produces all that pesky ash. Stuff like uranium and gold nuggets.
Both aliens and humans are surprised when both parties make quick good-byes after the trade and take off before the trade is regretted. They both think "gee, the other guys act like they cheated us."
(Planet) Blessed would not have been on my route other than for business reasons. Interstellar trade is economics stripped to basics. You can't make money by making money because money isn't money other than on its planet of issue. Most money is fiat; a ship's cargo of the stuff is wastepaper elsewhere. Bank credit is worth even less; Galactic distances are too great. Even money that jingles must be thought of as trade goods - not money - or you'll kid yourself into starvation.
This gives the sky merchant a grasp of economics rarely achieved by bankers or professors. He is engaged in barter and no nonsense. He pays taxes he can't evade and doesn't care whether they are called "excise" or "king's pence" or "squeeze" or straight-out bribes. It is the other kid's bat and ball and backyard, so you play by his rules - nothing to get in a sweat about...
...By the Law of Supply and Demand a thing has value from where it is as much as from what it is - and that's what a merchant does; he moves things from where they are cheap to where they are worth more. A smelly nuisance in a stable is valuable fertilizer if you move it to the south forty. Pebbles on one planet can be precious gems on another. The art in selecting cargo lies in knowing where things will be worth more, and the merchant who can guess right can reap the wealth of Midas in one trip. Or guess wrong and go broke...
...The trade routes for a two-way swap show minimum profit; they fill up too quickly. But a triangular trade - or higher numbers - can show high profits. Like this: Landfall had something - call it cheese - which was a luxury on Blessed - while Blessed produced - call it chalk - much in demand on Valhalla ... whereas Valhalla manufactured doohickeys that Landfall needed.
Work this in the right direction and get rich; work it backwards and lose your shirt.
I had worked the first leg, Landfall to Blessed, successfully... Anyhow, I got such a nice price that I temporarily had too much money.
How much is "too much"? Whatever you can't spend before you leave a place you are not coming back to. If you hang onto that excess and come back later, you will usually find - invariably, so far as I recall - that inflation or war or taxes or changes in government or something has wiped out the alleged value of fiat money you may have kept.
Suggested Reading
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Trailblazer (1981)
Other Thoughts
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Schlock Mercenary by Howard Tayler
Dane shouldered his bag into the lift which swept him up to ground level and out into the sunshine of a baking south-western summer day. He lingered on the concrete apron which rimmed this side of the take-off Field, looking out over its pitted and blasted surface at the rows of cradles which held those ships now readying for flight. He had scant attention for the stubby inter-planetary traders, the Martian and Asteroid lines, the dull dark ships which ploughed out to Saturn's and Jupiter's moons. What he wanted lay beyond - the star ships - their sleek sides newly sprayed against dust friction, the soil of strange worlds perhaps still clinging to their standing fins.
There was a spacer, a slim, scoured shape, pointing nose to sky, the heat of its braking fire making a steam mist about it. But this was no vision -- it was real! A spacer had set down by the village!...
Charis faced around toward the ship and waved vigorously, looking for the insignia which would make it Patrol or Scout.
There was none! It took a moment for that fact to make a conscious impression on her mind. Charis had been so sure that the proper markings would be there that she had almost deceived herself into believing that she sighted them. But the spacer bore no device at all. Her arm dropped to her side suddenly as she saw the ship as it really was.
This was not the clean-lined, well-kept spacer of any government service. The sides were space-dust cut, the general proportions somewhere between scout and freighter, with its condition decidedly less than carefully tended. It must be a Free Trader of the second class, maybe even a tramp -- one of those plying a none-too-clean trade on the frontier worlds. And the chances were very poor that the commander or crew of such would be lawfully engaged here or would care at all about what happened to the representatives of government they were already aligned against in practice. Charis could hope for no help from such as these...
Charis had known some Free Traders. In fact, among that class of explorer-adventurer-merchant her father had had some good friends, men who carried with them a strong desire for knowledge, who had added immeasurably to the information concerning unknown worlds. But those were the aristocrats of their calling. There were others who were scavengers, pirates on occasion, raiders who took instead of bargained when the native traders of an alien race were too weak to stand against superior off-world weapons.
"It is simple, my friend." The trader's insolent tone to Tolskegg must have cut the colonist raw, yet he took it because he must. "You need labor. Your fields are not going to plow, plant, and reap themselves. All right, in freeze I have labor -- good hands all of them. I had my pick; not one can't pull his weight, I promise you. There was a flare on Gonwall's sun, they had to evacuate to Sallam, and Sallam couldn't absorb the excess population. So we were allowed to recruit in the refugee camp. My cargo's prime males -- sturdy, young, and all under indefinite contracts. The only trouble is, friend, what do you have to offer in return?...
So that was it! Charis drew a deep breath and knew there was no use in appealing to this captain. If he had shipped desperate men on indefinite labor contracts, he was no better than a slaver, even though there was a small shadow of legality to his business...
"You present a problem." The captain spoke to her again. "There is no processing station here, and we cannot ship you out in freeze-"
Charis shivered. Most labor ships stacked their cargo in the freeze of suspended animation, thus saving room, supplies, all the needs of regular passengers. Space on board a trader ship was strictly limited...
And as her eyes adjusted she saw that they had indeed set down in a wasteland.
Sand, which was a uniform red outside the glassy slag left by the thruster blast, lapped out to the foot of a range of small hills, the outline of which shimmered in heat waves. There was no sign of any building, no look of a port, save for the countless slag scars which pecked and pitted the surface of the desert sand, evidence of many landings and take-offs.
There were ships -- two, three, a fourth farther away. And all of them, Charis saw, were of the same type as the one she had just left, second- and third-class traders. This seemed to be a rendezvous for fringe merchants...
"This is our chance, the big one, the one every trader dreams of having someday- a permit on a newly opened world. Make this spin right and it means-" His voice trailed off, but Charis understood him.
Trading empires, fortunes, were made from just such chances. To get at the first trade of a new world was a dream of good luck. But she was still puzzled as to how Jagan had achieved the permit for Warlock. Surely one of the big Companies would have made contact with Survey and bid in the rights to establish the first post. Such plums were not for the fringe men. But it was hardly tactful under the circumstances to ask Jagan how he had accomplished the nigh to impossible...
But all we collected in years of fringe-running was a reputation. The cargoes we carried never made a fortune, but they created rumours. The stories we could tell about ourselves were impressive, and contained enough truth for later voyagers to confirm that we might actually have done what we said. Lapthorn liked people to talk about us.
After the fringe, I tried to come back into the really big markets, in search of a killing. Guns, cosmetics, jewellery, and drugs were all hot markets, with constant demand and irregular supply. Anything in which fashion rules instead of utility is a good market for the trader — and that includes weaponry as well as decoration and edification. I reckoned that we had the initiative to dig out the best, and I was right, but times had moved on while we were out on the rim with the dropouts, and we failed at the other end — the outlets. We couldn't get a fair price, with the middle-men moving into the star-worlds in droves, quoting the Laws of New Rome, and the ordinances of wherever they happened be, and never moving their hands from their gun butts. It was enough to sour anyone against life in the inner circle. I began to sympathise with Lapthorn's dislike of the human way of life.
We stuck with it for a while, because I thought Lapthorn’s genius for digging out the best gems and the most exciting drugs might see us through. But it was useless. The little people seemed to take an excessive delight in cheating us and leaning on us because we were known. The other free traders talked about us. We were the best, by their lights. But we weren't system-beaters. We weren't equipped for dealing with that kind of problem, we had no alternative but to return to small trading, alien to alien. Lapthorn wasn't sorry, of course, and my sorrow was more for the evil ways of the world in general than for our own small part in the human condition.






