This section is from the book "Other People's Money And How The Bankers Use It", by Louis D. Brandeis. Also available from Amazon: Other People's Money and How the Bankers Use It.
Bigness has been an important factor in the rise of the Money Trust: Big railroad systems, Big industrial trusts, Big public service companies; and as instruments of these Big banks and Big trust companies. J. P. Morgan & Co. (in their letter of defence to the Pujo Committee) urge the needs of Big Business as the justification for financial concentration. They declare that what they euphemistically call "cooperation" is "simply a further result of the necessity for handling great transactions"; that "the country obviously requires not only the larger individual banks, but demands also that those banks shall cooperate to perform efficiently the country's business"; and that "a step backward along this line would mean a halt in industrial progress that would affect every wage-earner from the Atlantic to the Pacific." The phrase "great transactions" is used by the bankers apparently as meaning large corporate security issues.
Leading bankers have undoubtedly cooperated during the last 15 years in floating some very large security issues, as well as many small ones. But relatively few large issues were made necessary by great improvements undertaken or by industrial development. Improvements and development ordinarily proceed slowly. For them, even where the enterprise involves large expenditures, a series of smaller issues is usually more appropriate than single large ones. This is particularly true in the East where the building of new railroads has practically ceased. The "great" security issues in which bankers have cooperated were, with relatively few exceptions, made either for the purpose of effecting combinations or as a consequence of such combinations. Furthermore, the combinations which made necessary these large security issues or underwritings were, in most cases, either contrary to existing statute law, or contrary to laws recommended by the Interstate Commerce Commission, or contrary to the laws of business efficiency. So both the financial concentration and the combinations which they have served were, in the main, against the public interest. Size, we are told, is not a crime.
But size may, at least, become noxious by reason of the means through which it was attained or the uses to which it is put. And it is size attained by combination, instead of natural growth, which has contributed so largely to our financial concentration. Let us examine a few cases:
 
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