The gravitation constant is the same always. But the economic constants-these elasticities of demand and supply-depending, as they do, upon human con….

If a man marries his housekeeper or his cook, the national dividend is diminished..

Even if the constants which economists wish to determine were less numerous, and the method of experiment more accessible, we should still be faced w….

It is not pretended that, at the present stage of its development, economic science is able to provide an organon even remotely approaching to what i….