_Movement Inevitable in the Dynamic State._--These influences reveal their presence by making labor and capital more productive in some places than they are in others, and by causing them ever and anon to move from places of less productiveness to places where gains are greater. As we have said, this moving of labor and capital to and fro is, like currents in the sea, a sign of a dynamic condition. As in the static state these agents would not thus move, however fluid and mobile they might be, so in a dynamic state they are bound to move, because their earning powers do not remain long exactly equal in any two employments, and they go now hither and now yon, as, in the changeful system, openings for increased gains present themselves. If commodities were everywhere selling at cost prices and if wages and interest were everywhere normal and uniform, labor and capital would not move to and fro, and this would be a proof that dynamic influences were absent. _How an Imaginary Static Society is Created._--If we wish to discover to what standard the values of goods, on the one hand, and the rewards of labor and capital, on the other, continually tend to conform, we must create an imaginary society in which population neither increases nor diminishes, in which capital is fixed in amount, in which the method of making goods does not change, in which the mode of organizing industry continues without alteration, and in which the wants of consumers never vary in number, in kind, or in intensity. _Costs of Production in a Static State._--We have said that in such a static state the prices of different products are just high enough to cover the wages and interest which are generally paid. There are uniform or all-around rates of pay for labor and for capital, and every man who hires workmen or gets loans from a bank has to pay them. In the real world, full as it is of disturbances, and given over as it is to forces of change and progress, we find that values, wages, and interest are in general surprisingly near to these standards. In a particular business products may for a time sell for enough to afford a large surplus above prevailing wages and interest, and business as a whole may, for a time, yield some such surplus; but in the absence of monopolistic privileges no one business yields a large surplus for a long time, and still less does business as a whole do so, though profits may always be found somewhere within the system.