Let us imagine a deserted and isolated island. Three men, Arnold, Brian, and Cory, become stranded on this island. They have no tools or supplies except for the clothes on their backs. The only food available to eat are the wild fish and coconuts.
Arnold can catch one fish per four hours he spends fishing. He can gather two coconuts per one hour he spends gathering coconuts.
Brian can catch one fish per two hours he spends fishing. He can gather six coconuts per one hour he spends gathering coconuts.
Cory can catch one fish per one hours he spends fishing. He can gather four coconuts per one hour he spends gathering coconuts.
As we can see, Brian is the most efficient of three men at gathering coconuts. Cory is the most efficient at fishing. Arnold is the least efficient at both tasks.
Let us now assume that the commodity traded as money is coconuts. While they do have intrinsic value (as food) they are also the most durable of the goods available as the fish will spoil much sooner than a coconut.
The men all wish to consume 4 coconuts and 2 fish per day. Without engaging in trade, A would have to work 10 hours per day to achieve this, B would have to work 4.67 hours per day to achieve this, and C would have to work 3 hours per day to achieve this.
However, let us assume that one of them has heard that the division of labor is a wonder, and the men discuss it. We will assume that C is too skeptical of the idea to think it can work, but A and B agree to give it a shot.
B agrees to trade 9 coconuts to A in exchange for A transferring 1 fish to B. Both men have benefitted from the voluntary exchange. A worked 4 hours to get a fish to B, but A received 9 coconuts in return, which if he had to do on his own would take 4.5 hours. B worked 1.5 hours to get 9 coconuts to A, but B received 1 fish in return, which if he had to do on his own would take 2 hours.
At the end of the day, to reach the 4 coconuts and 2 fish total that each man wanted, C worked 3 hours. B worked 3.83 hours (meaning he gained 1.17 hours of leisure time from his trade with A). A worked 12 hours, which is 2 more than he would have without trading, expect that he also has 5 coconuts left over as savings, which on his own would have required 2.5, not 2, extra hours of labor.
Now, being convinced of the great advantages of trade, C is ready to get in on the action. The next day, C offers to trade 1 fish to A in exchange for 5 coconuts. A happily agrees. No one chooses to trade with B.
At the end of this day, C had to work 3 hours but has 1 coconuts surplus as savings. B, because he did not engage in any voluntary exchange, worked for 4.67 hours. A worked 6 hours (meaning he gained 4 hours of leisure time that he wouldn’t have had he not engaged in any trade and had no savings).
enter Buzz Killington
Buzz: Hey!! That was bullshit!! B traded coconuts (commodity money) to A, but then A was a dickhead and traded those coconuts to C. Now B is going to be unemployed!!
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Why would B be unemployed? Yes, B won’t be employed on this day to gather coconuts for A like he was yesterday. But this just means that B won’t have the leisure time he had yesterday. Is he entitled to having that leisure time? Of course not! I hope that is not your argument. B will still be self-employed (since he has to work for himself if he won’t trade). And if B wants to trade, he will have to beat A’s offer to C. B might be able to offer C 8 coconuts in exchange for 1 fish. A will likely be unwilling to match or beat that price.
But then again, I think your argument is that A should have traded that money back to B, because if he doesn’t, B will be unemployed. This just makes no sense to me. First, should A make the same trade to B, but in reverse? In other words, should A trade 9 coconuts to B in exchange for B transferring 1 fish to A? Now maybe this makes sense at first glance, but let us look at what would happen if this occurred to demonstrate that it truly doesn’t make sense.
For A to get 9 coconuts for B, with his savings of 5 coconuts, he will have to work 2 hours. However, he will also have to work 2 hours to get 4 coconuts for himself, as well as four hours to get 1 fish (and B will trade 1 fish to him). This means A will have to work a total of 8 hours.
On the other hand, B will have to work 2 hours to get a fish for A, plus he will have to work 4 hours to get 2 fish for himself. He will end up with 5 coconuts as savings, for a total of 6 hours.
In summary, over the two days, A worked a total of 20 hours, same as he would have had he simply refrained from engaging in trade in the first place. B worked a total of 9.83 hours, 0.5 hours more than what he would have had he refrained from engaging in trade in the first place, although he does have five coconuts in savings (since it takes B 0.83 hours to gather 5 coconuts, we can see his net gain is 1 coconut or 0.17 hours).
B saw a slight gain in this exchange, but A sees none. There is no reason for A to engage in this sort of trade. That is, when the goal is just to trade money to a party in expectation for them to trade it back, it is possible (and sometimes likely depending on the efficiencies of each party) that one party will see no gain and wouldn’t do that.
On the other hand, in the first scenario (where B traded money to A on day one and A traded money to C on day two), A worked a total of 18 hours over two days (meaning he gained two hours of leisure or the equivalent 4 coconuts he could gather in that time), B worked 8.5 hours (meaning he gained 0.83 hours of leisure time or the equivalent 5 coconuts he could gather in that time), and C worked 6 hours (meaning that he worked the same number of hours as he would without trade but also has 1 coconut in savings, which is equivalent to 0.25 hours). Clearly, when the individuals act in their own self-interest and engage in trade that is voluntary, everyone gains.
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tl;dr - There is no inherent reason why nation A trading the money that originated in nation B to nation C will necessarily cause unemployment in nation B. In fact, it is far more likely that there will be an increase in the demand for labor (since they would have more labor-hours to work). The only way this (not trading nation B’s money right back to them) could be viewed as a problem is because the people in nation B feel entitled to leisure time and/or higher consumption without providing any benefits to nation A. To believe what Buzz is proposing as a “problem” is to be engaging in the belief in some sort of global social contract and collectivism, or to simply misunderstand basic economics, or to shun individual liberty (to engage in trade with any party on any terms voluntarily). I don’t know which Buzz is actually guilty of. Since he says he isn’t trolling, I’m guessing he really hasn’t fully grasped the economic character of the situation, and due to this oversight/ignorance, has embraced a protectionist policy prescription (which only serves to benefit a small few at the expense of the many) by law or economic policy.