People who want to produce things other people don’t want to buy are not hurt by those other consumers buying other things they actually want and thus not trading with them. Those other people have done nothing to them physically. They have merely not associated with them. They forego the pleasure from the goods gotten in trade they could have made had they produced something else, but they did what they personally wanted to do, and nobody had taken anything from them. In order to hurt them, they must take something from them. Now if violence force is initiated, then somebody is hurt, because they forego what would have been possible had violent force not been applied to them.
Costs are already minimized in the above procedure. That nobody wants to trade with people who don’t offer anything to trade from perspective of other people is not a cost additional to those people who produced the useless things. They cannot benefit other people by trading with them, and if all the people who produced more useful things disappeared, people would still not trade with them. They’d wait until these people decided to actually produce something useful. Costs are already as low as they can be considering the whole system. And no person’s preferences are considered more important than any other person’s preferences, so redistribution of costs cannot possibly improve welfare, which is the want-satisfaction of society.
One man’s gain is not another man’s loss. Because gain and production is of utility, not matter-energy which is conserved. If production had to be of matter or gains during exchange had to be material neither production nor growth of gain over time would be possible; but useless material is no gain and nobody foregoes opportunities to make material into useless form, and so gain and production cannot be material. One person is not hurt additionally (suffers additional foregoing of pleasure) by another person increasing production or by trading with other people, except where initiation of force, e.g. through legal tender laws and inflation or credit expansion, redistribution, takes place between them originating with that other person. That is because additional utility is created, that did not exist to be distributed otherwise.
There is no additional cost placed on people who do not produce what other people want because they want to trade for things other people have and without people buying their products they cannot. They cannot use violence to change the situation lest they break division of labor which requires peace and causes the remainder of their wants forever to be worse satisfied than is possible in division of labor.
REMEMBER: No preferences are considered better or worse, are themselves preferred, the one relative another, so redistribution where costs are already minimal cannot be suggested to increase welfare. They are all arbitrary and determined by life history up to that point and (a bit of) genetics. Like in relativity, where no coordinate system or frame of reference is better or worse than any other.
All other things equal, when A and B trade X and Y and they both gain. More wants are satisfied and no satisfaction of wants is foregone in order to do this. That’s why people trade. You say, C was not traded with, because he or she had Z, and so this hurt C, since C wanted X. Now Y was more valuable to A than Z, so A traded with B and not C. This you say hurt C. But C is not hurt. C decided, on his or her own, to make Z instead of Y. And neither A nor B initiated violence to force C to make Z. Thus C did what he or she wanted, taking the costs into account already, first of all, or C was mistaken.
(F) Fact: No preferences themselves are preferred, all considered equally valid because equally arbitrary. (1) To force A to trade with C instead of B would create additional costs or foregone opportunities in addition to C wasting resources to make Z, namely, A and B would be hurt and cost of the initiation of force would have to be added to costs of production, so that fewer wants are satisfied, costs are total greater, and the assumption is made that preferences of C are more important than preferences of A or B. (2) If A and B to trade and C to be left with Z would leave costs as minimal AS PHYSICALLY POSSIBLE and welfare as maximum with no preferences being preferred.
C suffers costs due to scarcity; but so do A and B. (2) is the minimum cost maximum welfare output of the natural system permitted by SCARCITY, but because of (F), no deviation from (2) to (1) would increase welfare.
To force a deviation from (2) to (1) requires contradicting (F), because the intervention to make that deviation has its own additional costs (violence, which breaks division of labor), plus number of wants in society satisfied decreases going from (2) to (1). Hence welfare is greater in case (2) than in (1). Welfare is greater in case (1) instead of case (2) if and only if (F) is false and if, hypothetically, violence did not contradiction division of labor, which is not true, since division of labor depends on cooperation, is a kind of cooperation.
C actually prefers A to trade with B, because C cannot use violence to improve his or her position. In other words, C is not hurt in case (2) if (F) is true; only if (F) is not true is C hurt. You cannot hurt somebody by NOT doing anything to or for them at cost to yourself if (F) is true. There is no foregone opportunity to C when A and B trade amongst themselves because for C to use violence against A or B is less preferred than to not use violence to intervene.
But why can’t C initiate violence and so improve his or her welfare? He or she can get rid of B and then A will trade with C, right? C cannot be hurt by existence of B, because C cannot initiate violence to increase his or her own preferences. C has other preferences besides want of X over Z. If C initiates violence, then division of labor is interrupted since it requires peace and trade and money for rational calculation, but division of labor is more productive to satisfaction of every want, whatever it is, compared to isolated labor. To initiate violence to get X, C will forego every other possible satisfaction, and that is greater cost than doing nothing while A trades with B and not C. Therefore C does not forego any next best opportunity by letting A and B trade instead of initiating violence, because to initiate violence would result in even fewer preferences of C being satisfied (not to mention fewer preferences of A and B being satisfied).
Therefore, A and B gain by trade without hurting anyone.
Remember: violence => breakdown of division of labor, which is peaceful activity, since it requires indexing of capital goods by money and is cooperation, competition to best satisfy each other’s wants, not fighting.
C has no opportunity of A trading with C which is then foregone when A trades with B, because A won’t trade with C unless C uses violence, which would later result in fewest possible wants of C being satisfied. Nor welfare of the group greater when C uses violence, but less, because of (F).
EDIT: wow that’s long. Gotta use that in some paper, but its all been said before.