CHAPTER 3
WEALTH AND WELFARE
§ I. THE RELATION OF MEN AND MATERIAL THINGS TO ECONOMIC WELFARE
Man is the center of economic reasoning
1. The gratifying of economic wants depends on things outside of the man who feels the wants. Man is to himself the center of the world. He groups things and estimates things with reference to their bearing on his desires, be these what are called selfish or unselfish. If we were discussing the economics of an inferior species of animals, things would be grouped in a very different way. But economics being the study of man's welfare, everything must be judged from his standpoint, and things are or are not of economic importance according as they have relation to his wants and satisfactions. Things needful for any of the lower animals are spoken of as "ministering to welfare" in the economic sense only in case these animals are useful to men. Examples are the mulberry-tree on which the silkworm feeds, the flower visited by the honey-bee. In the same view some men are seen to minister to the welfare of other men and therefore bear the same relation for the moment to the welfare of the others as do material things. In any case we study man's welfare as affected by the world which surrounds him.
Physical nature is an unchangeable fact
2. Material things and natural forces differ in kind and nature. This is an axiom which we must take as a basis for reasoning in economics. Things have certain physical qualities quite apart from any action or influence of man. They are operated on by mechanical laws; the force of gravitation causes them to fall at a certain rate under given conditions. They differ in specific gravity, reflect the rays of light, absorb or transmit heat. All these things are for man ultimate physical facts, but unless he knows these facts he cannot take full advantage of the favorable qualities of things or weigh properly their importance to his welfare. Things differ in a multitude of ways in their chemical qualities. Niter, charcoal, and saltpeter, combined in certain proportions, give certain reactions; different combinations give various results. Solids combine to form gases, and liquids unite to form solids, and these qualities and reactions of material things are for man ultimate truths of chemistry. Likewise many things have certain physiological effects. Sunshine acts on living bodies, whether plant, animal, or man, in certain ways. Some plants are nourishing to man, others are poisonous. If man were not on the earth, things would have the same physical and chemical qualities, mechanical laws would be the same as at present so far as we can conclude. Man cannot change the nature of things; but he can acquaint himself with that nature and then put the things into the relations where a given result will follow.
But economics has to do with psychological effects
3. As a result of these differences, things have different relations to wants. These various qualities, physical, chemical, physiological, are important in an economic sense only as they produce psychological effects, that is, as they affect the feelings and judgments of men. We come to some general thoughts which it will be well to define.