CHAPTER XXX
SUMMARY OF CONCLUSIONS
Perpetual change is the conspicuous fact of modern life. So revolutionary are the alterations which a few decades make in the industrial world as to raise the question whether there are economic laws which retain their validity for any length of time. If there are not, we have one economic science now, and shall have a different one ten years hence and a widely dissimilar one a century later. Of Descriptive Economics this is true, since it changes with the world it describes; but it is not true of Economic Theory. There are certain principles which are equally valid in all times and places. They were true in the beginnings of industry, are true now, and will remain so as long as men shall create and use wealth. They are not made antiquated either by technical progress or by social evolution. We have at the outset stated some of these truths. They have reference to man, to his natural environment, and to the interactions of the two, and they do not depend on the relations of man to man. We have also stated other economic truths which apply only to man in a social state. They are not universal, but are so general that they are exemplified in the economic life of every society, from the most primitive to the most highly civilized. They are the principles of Social Economic Statics, and in order to have them distinctly before us we have created in imagination a society which is changeless in size, in form, and in mode of economic action. In such a condition the wages of labor would remain fixed, as would also the interest on capital. Wages and interest would absorb the whole product of social industry; for the static condition, as we have thus created it, excludes profits of the entrepreneur. In broad outline this describes the condition toward which certain economic forces are continually impelling the actual world.
There is at each period a standard shape and mode of action to which static laws acting by themselves would bring economic society. This social norm, however, is not the same at any two periods. The static laws remain unchanged, but they act in changing conditions, and if they were left alone and undisturbed, would give one result in 1907 and another in 2007. The changes which a century will bring should make society larger and richer, the mode of production more effective, and the returns for all classes greater. The laws which set the standard of wages and interest will remain the same, but if the tendencies now at work have their natural effect, all these incomes will be larger. It is as though great quantities of water were rushing into a lake and causing disturbances and upheavals of the surface. If the inflow should now stop, the surface would subside to a general level. If the inflow should recommence, go on for a hundred years, and then stop, the surface would again subside to a level, but it would be higher than the former one. Yet the laws of equilibrium which produced the first static level would be identically the same as those which produced the second. Social Economic Statics is a body of principles which act in every stage of civilization and draw society at every separate period toward a static norm, though they do not at any two periods draw it toward the same norm. They make actual society hover forever about a changing standard shape.
The laws which govern progress—which cause the social norm to take a different character from decade to decade, and cause actual society to hover near it in its changes—are the subject of Social Economic Dynamics. We have made a study of the more general economic changes which affect the social structure, and they stand in this order:—
(1) Increase of population, involving increase in the supply of labor.
(2) Increase in the stock of productive wealth.
(3) Improvements in method.
(4) Improvements in organization.
All these things affect the productive power of society, and correlated with them and standing over against them is a fifth type of change, which affects consumers' wants and determines how productive power shall be used.
We have examined each single change by itself and have then endeavored to combine them and get the grand resultant of all. Beginning with the increase of population, we have traced its effects on wages, on interest, and on the values of goods. We have made a similar study of the growth of capital, the progress of technical method, and the organization of industry.