Prof. Marshall gives the following list of the inquiries chiefly pursued by economic science[57]:-- “How does economic freedom tend, so far as its influence reaches, to arrange the demand for wealth and its production, distribution and exchange? What organization of industry and trade does economic freedom tend to bring about; what forms of division of labour; what arrangements of the money market, of wholesale and retail dealing, and what relations between employer and employed? How does it tend to adjust values, that is, the prices of material things, whether produced on the spot or brought from a distance, rents of all kinds, interest on capital and the earnings of all forms of work, including that of undertaking and managing business enterprises? How does it affect the course of foreign trade? Subject to what limitations is the price of anything a measure of its real utility? What increase of happiness is _prima facie_ likely to result from a given increase in the wealth of any class of society? How far is the industrial efficiency of any class impaired by the insufficiency of its income? How far would an increase of the income of any class, if once effected, be likely to sustain itself through its effects in increasing their efficiency and earning power? “How far does, as a matter of fact, the influence of economic freedom reach, or how far has it reached at any particular time, in any place, in any rank of society, or in any particular branch of industry? What other influences are most powerful there? and how is the action of all these influences combined? In particular, how far does not economic freedom tend of its own action to build up combinations and monopolies, and what are their effects? How are the various classes of society likely to be affected by its action in the long run? What will be the intermediate effects while its ultimate results are being worked out; and, account being taken of the time over which they will spread, what is the relative importance of these two classes of ultimate and intermediate effects? What will be the incidence of any system of taxes? What burdens will it impose on the community, and what revenue will it afford to the State?” Such then, is the subject matter of economic science spread out in some detail. But behind all these there are practical questions which give the chief motive to our interest in the subject; and though not within the actual range of the science, it will be of interest to us to hear the same authority state them. They vary very much from time to time. The earlier economists were occupied with the need of removing restrictions on free commerce, and government regulation generally, and they glorified economic freedom. We ask with Marshall: