st.
Working men and women spent labor producing you and me. Somebody made bread, sewed shoes, built houses and made clothes for us. All the things we ate and drank and wore and used were made by the labor of working men and women. Their labor was necessary labor. Without it we should never have grown old enough or strong enough to have labor-power to sell. Labor-power was spent in raising as to the point where we would be able to work.
The value of a commodity is determined by the social labor-time necessary to produce it. On page 61 of the Kerr edition of Value, Price and Profit, Marx says:
"It might seem that if the value of a commodity is determined by the quantity of labor bestowed upon its production, the lazier a man, or clumsier a man, the more valuable his commodity, because the greater the time of labor required for finishing the commodity. This, however, would be a sad mistake. You will recollect that I used the word social labor, and many points are involved in this qualification.
"In saying that the value of a commodity is determined by the quantity of labor worked up or crystalized in it, we mean the quantity of labor necessary for its production in a given state of society, under certain social average conditions of production, with a given social average intensity, and average skill of labor employed."
If you spend three months cutting up a log with a pen-knife into a kitchen chair, it will be no more valuable in the end than the kitchen chair made in the big factories where many men working at large machines produce hundreds of chairs in a single day.
Of course we know that every new improvement in machinery lessens the labor-time needed in making certain commodities. Oil is less valuable than it was ten years ago because it takes less labor- power to produce it. Steel has fallen in value, because owing to the new and improved machinery used in making steel it requires less human labor-power for its production.
Suppose every shoe factory in the country were working full time in order to supply the demand for shoes. The factories using the very old fashioned machinery would require more labor to the shoe than the factories using newer machines, while the great, up-to-date factories using the most modern machines would need comparatively little human labor-power in producing shoes.
The value of shoes would be determined by the average (or social) labor-time necessary to make them, or the socially necessary labor contained in all the shoes.
The value of gold or silver is determined in the same way. The necessary social labor needed to produce gold gives it its value. The value of gold rises or falls just as the value of other commodities rise or fall. Today gold is much lower in value than it was twenty years ago, because new methods of production have reduced the social labor needed in gold mining about one-half. If you have twenty dollars in gold it is only of half the value of twenty dollars twenty years ago. It contains only half the labor.
In the same may we may determine the value of laboring-power "Like every other commodity its value is determined by the quantity (or time) of labor necessary to produce it.
"The laboring-power of a man exists only in his living individuality. A certain mass of necessaries must be consumed by a man to grow up and maintain his life. But the man, like the machine, will wear out, and must be replaced by another man. Besides the mass of necessaries required for his own maintenance, he wants another amount of necessaries to bring up a certain quota of children that are to replace him on the labor market and to perpetuate the race of laborers....It will be seen that the value of laboring-power is determined by the value of the necessaries required to produce, develop, maintain and perpetuate the laboring-power." (Value, Price and Profit, pp. 75-76.)
The value of a man's labor-power is determined by the social labor necessary to produce it, Marx says. This means food, clothing, shelter (the necessities of life) and it means something additional to rear a boy or girl to take y