Module 6: Economic and utilitarian theories
  Lecture 16: Capitalism, Socialism, and Mixed Economy

Marx argued that in a capitalist society workers are given wages much below their contribution to production. The difference between the two is called the surplus which is retained by capitalists and added to the existing capital. Thus capital may be divided into two parts: fixed capital consisting of means of production; and variable capital consisting of wages. With development of society or capital accumulation the proportion of fixed capital in the total capital rises and that of variable capital declines. This gives rise to the law of declining rate of profit. This also gives rise to unemployment and misery among the working classes. Ultimately the system collapses.

To quote (Dunayevskaya, 1947):

The law of the falling tendency of the rate of profit is the expression of the law of value under the most advanced conditions of capitalist production. Under these conditions the ever greater preponderance of dead over living labor brings about such a falling relation of surplus value to total capital that a day might come when, even if the capitalist could appropriate all 24 hours of labor of the EMPLOYED army, and the laborers lived on air, the capitalist could not get SUFFICIENT surplus value to run the mammoth capitalist machine on an ever-expanding scale. The general contradiction of capitalism thus reaffirms the three principal facts of capitalist production: (1) decline in the rate of profit, (2) deeper and deeper crises, and (3) a greater and greater unemployed army.

Marx and Engels showed that capitalism carries severe internal contradictions because of which it eventually destroys itself and gets replaced by socialism. To quote (Engels, 1843):

The opposite of competition is monopoly. Monopoly was the warcry of the Mercantilists; competition the battlecry of the liberal economists. It is easy to see that this antithesis is again a quite hollow antithesis. Every competitor cannot but desire to have the monopoly, be he worker, capitalist or landowner. Each smaller group of competitors cannot but desire to have the monopoly for itself against all others. Competition is based on selfinterest, and selfinterest in turn breeds monopoly. In short, competition passes over into monopoly. On the other hand, monopoly cannot stem the tide of competition -- indeed, it itself breeds competition; just as a prohibition of imports, for instance, or high tariffs positively breed the competition of smuggling. The contradiction of competition is exactly the same as that of private property. It is in the interest of each to possess everything, but in the interest of the whole that each possess an equal amount. Thus, the general and the individual interest are diametrically opposed to each other. The contradiction of competition is that each cannot but desire the monopoly, whilst the whole as such is bound to lose by monopoly and must therefore remove it.