B. Wages and interest for the labor and capital utilized only in one's own production, and which cannot be let. _v. Mangoldt_ himself admits, that, in the long run, only certain qualified labor belongs to this category. C. Undertaker's rent (_Unternekmerrente_) depending on the rarity of undertakers (men of enterprise) compared with the demand. This, therefore, is not a third component part, but only one which adds to the other two, _Storch_, Handbuch, I, 180, and _Rau_, Lehrbuch, I, § 237 ff., consider the profit of the undertaker as an admixture of wages and interest. Professor _J. Miscszewicz_ has given expression to an interesting thought in opposition to myself: that credit is a fourth factor of production (natural forces, labor and capital being the other three) produced by the three older factors, as capital by the two oldest. The undertaker's profit he then considers the product of this fourth factor, corresponding to rent, interest and wages.] [Footnote 195-5: Compare _Canard_, Principes, ch. 3; _J. B. Say_, Traité, II, ch. 7, Cours pratique, V, 1-2, 7-9, distinguishes three branches of income: rent, interest and the profits of industry; and he divides the latter again into the profits of the _savant_, the undertaker and workmen, (_v. Jacob_, Grundsätze der Nat.-Oek., § 292; _Lotz_, Handbuch, I, 471; _Schmalz_, Staatswirthschaftslehre, I, 116; _Nebenius_, Œff. Credit, I, Aufl., 466.)] [Footnote 195-6: I need only call attention to the influence that the mere name of a general sometimes exerts over the achievements and sometimes even over the composition of his army (Wallenstein!); and how important it sometimes is to keep his death a secret. And so the mere name of a minister of finance may facilitate loans, etc.] [Footnote 195-7: It is sufficient to mention the different positions occupied by the shareholders and preferred creditors of a joint-stock company.] [Footnote 195-8: Compare _von Thünen's_ Isolirter Statt, II, 80 ff., and his Life, 1868, 96. _Meister muss sich immer plagen!_ (_Schiller._) See a long catalogue of books on the position of the undertaker in the principal different branches of industry in _Steinlein_, Handbuch der Volkswirthschaftslehre, I, 445 ff.] [Footnote 195-9: _Tantièmes_ occupy a middle place between wages and the undertaker's profit; dividends a middle place between undertaker's profit and the interest of capital. On this is based _Rodbertus's_ view, that an increase of joint stock companies raises _ceteris paribus_ the rate of interest, and an increase of productive associations the rate of wages, for the reason that in each instance, there is some admixture of "undertaker's profit," or reward of enterprise.] SECTION CXCVI.