1. _Wages in particular industries often are maintained above the competitive rate._ The older economic writers were somewhat unsympathetic with trade-unions, and were even inclined to deny that organization could be helpful in any way in raising wages. This view, it must now be recognized, was mistaken, and overlooked the hindrances to competition and the effective economic forces that organization can bring into play. The sympathies of most men favor the wage-earner so strongly that they hesitate to express an opinion in any way unfavorable to his efforts to raise wages. But the view of the economic theorist as to the services of the union cannot be as roseate as is that of the union labor leader. The general proposition, however, is applicable, that wherever it is possible to limit supply, prices may be raised. If men fitted to do a certain work are not permitted to do it, labor in the special industry becomes more scarce and consequently more highly valued. This involves the result that some men are forced to remain where they get lower wages than they could earn if free to act. The temporary need of the employer may enable the union to force from him a division of his profits. If the trade-union watches its opportunity and takes occasion to strike when a failure to fill orders would cause him great loss, it may compel him to pay for a time more than the normal value of the labor. It may well be doubted whether such action on the part of labor is generous, fair, honest, or in the long run wise; but that it may be immediately effective cannot be denied. By the principle of complementary goods an essential kind of labor can be given an artificially high value, if its supply can be controlled. If only the labor that is ready and willing to come in to take the place of the strikers can for a time be kept out, wages may be fixed practically according to monopoly principles, later to be discussed in connection with capitalistic organization. [Sidenote: Exaggerated claims made for trade-unions]