7. The scarcity of human services, relative to wants, is the fundamental fact in the problem of wages. It is clearly seen that some qualities of service are scarce. Most women will confess that they cannot warble as Patti could, most men will admit that they have not the mercantile ability of John Wanamaker. The man of mediocre capacity recognizes even through the fog of his self-esteem that there is a reason for the high value of certain rare services. But it must also be recognized that the commonest services have value only because they are scarce. There are many things to be done if there were labor enough to do them. There is no need to "make work," in the popular sense; it is here, but labor is lacking to do it. It is true there may be a temporary superfluity of human labor at a time of an industrial crisis. There is at all times a superfluity of "useless" human agents whose qualities are such that they have no net utility. The ignorant, insane, feeble-minded, vicious, drunken, and debauched, can give to the world only negative utilities. But services that are in any degree useful are nearly always in demand, and the higher services are so rare that they are in great demand. The proverb, "There's always room at the top," is seen to be true when conditions are thus analyzed. There is a large, though limited, supply of the commoner kinds of services at the bottom of the scale, but in every branch of human effort there is a never-ending lack of that higher qualification and training required for the best results.
CHAPTER 21
THE SUPPLY OF LABOR
§ I. WHAT IS A DOCTRINE OF POPULATION?
The employer's and the social view of supply of labor
1. The supply of labor means here not the number of workers available in any one industry, but the number available in the whole field of industry. The individual employer thinks of the supply of labor as consisting of the men seeking employment in his special industry. In this view it is the demand by the employers that apportions the workers among the various occupations. The social view of the supply of labor, however, looks at the whole field. The demand for labor is then seen to be represented not by human employers, but by resources and agents presenting opportunities and demanding labor to employ them. The rich acre, the tool, the machine, all material wealth needing the human touch to give it a higher utility, represent a demand for labor in this broad sense. The thought of a supply of labor is therefore relative to that of the demand embodied in resources. A million men are a great or a small supply of labor according as they occupy a little island or a large continent, according as they are equipped with a small or a large supply of agents.
Population in relation to resources
2. "Supply of labor," as an economic problem, presents a large and complex case of diminishing returns. The population of different countries and of different sections of a country is seen to bear a general relation to their resources. An unintelligent race with little wealth and poor machinery is doomed to remain few in numbers. Mountains, districts poorly watered, the frozen regions of the North, are sparsely populated because natural resources are lacking. If food production alone is thought of there are apparent exceptions to this statement, but there are no absolute contradictions of it. A favored harbor may make possible a flourishing commerce on a rocky coast; an unfertile soil may support a large population when great deposits of coal or iron insure by exchange great food-supplies. Productivity must be measured under modern conditions by the purchasing power that is possible in the environment. The connection of wealth and resources with the extent of the population is in itself a recognition of diminishing returns, of an objective limit to the number of men that can occupy a certain area and employ a given stock of agents.