Referencing this quote from Interventionism: An Economic Analysis, so I can link to it later.
One thing more must be noted. If within a society based on private ownership of the means of production some of these means are publicly owned and operated, this still does not make for a mixed system which would combine socialism and private property. As long as only certain individual enterprises are publicly owned, the remaining being privately owned, the characteristics of the market economy which determine economic activity remain essentially unimpaired. The publicly owned enterprises, too, as buyers of raw materials, semi-finished goods, and labor, and as sellers of goods and services, must fit into the mechanism of the market economy; they are subject to the same laws of the market. In order to maintain their position they, too, have to strive after profits or at least to avoid losses.
When it is attempted to mitigate or eliminate this dependence by covering the losses of such enterprises by subsidies out of public funds, the only accomplishment is a shifting of this dependence somewhere else. This is because the means for the subsidies have to be raised somewhere. They may be raised by collecting taxes; the burden of such taxes has its effects on the market, not on the government collecting the tax; it is the market and not the revenue department which decides upon whom the tax falls and how it affects production and consumption. In these facts the domination of the market and the inescapable force of its laws is evidenced.