One of the effects of a world-wide war is an enormously increased demand for labor at high and advancing wages, a condition that we might suppose would be greatly to the advantage of the laborer. But that will depend upon his own attitude and policy. From England, and from American towns here and there, we hear stories of the wage-earner on whom increasing income has had the effect of lessening the effort to work; who stops during the week when the higher wage scale has paid him the amount he is accustomed to regard as a week's earnings. Now, would it not seem natural to expect that any man encountering improved market conditions for his output, whether of commodity or service, would seek to turn the situation to advantage by increasing that output as largely as lay in his power? If, for instance, I can manufacture shoes to sell for $4.00 a pair and a change in market conditions is such that I can obtain $5.00 a pair, I would endeavor to produce more shoes in order to profit by the favorable market; and if thereafter the price should rise to $6.00 and $7.00 and $8.00 a pair, at each increment my efforts would be still further intensified. That, indeed, is the normal economic attitude. Fluctuations in the price level due to changes in the demand for a commodity are expected to affect, and do affect, the market supply. At a higher price, production is stimulated and more units of the commodity are brought to the market, both from new sources and from old sources. Under falling prices, on the other hand, the supply offered in the market would become automatically diminished. This is an elementary commonplace in economics, yet the laborer to whom we have just referred does not seem to recognize it. He may find that he can earn in, say four days, an amount equal to his former earnings in six days and, therefore, at the end of the fourth day he quits work for the week. Now, obviously under such increasing wage scale, he might do one of three things: He could quit at the end of the fourth day, having received a week's income. He could continue working for the six days and use his surplus earnings for comforts, pleasures, and luxuries which previously he had been unable to afford. He might work for the six days and save as much as possible of his excess earnings.