Ludwig Lachmann Quotes

Formalism, in opting for the functional mode making possible precise quantitative determinations within a closed system of variables, forgoes the possibility of making meaningful statements about human action.

The Keynesian world is a world in which there are two distinct classes of actors: the skilled investor, 'who, unperturbed by the prevailing pastime, continues to purchase investments on the best genuine long-term expectations he can frame', and, on the other hand, the ignorant 'game-player'. It does not seem to have occurred to Keynes that either of these two may learn from the other, and that, in particular, company directors and even the managers of investment trusts may be the wiser for learning from the market what it thinks about their actions. In this Keynesian world the managers and directors already know all about the future and have little to gain by devoting their attention to the misera plebs of the market. In fact, Keynes strongly feels that they should not! This pseudo-Platonic view of the world of high finance forms, we feel, an essential part of what Schumpeter called the 'Keynesian vision'. This view ignores progress through exchange of knowledge because the ones know all there is to be known whilst the others never learn anything.

Both, business expectation and scientific hypothesis serve the same purpose; both reflect an attempt at cognition and orientation in an imperfectly known world, both embody imperfect knowledge to be tested and improved by later experience. Each expectation does not stand by itself but is the cumulative result of a series of former expectations which have been revised in the light of later experience, and these past revisions are the source of whatever present knowledge we have