Monopolies. The bigger they get, the less taxes they pay. In the following quote, use “monopoly” instead of “trust.”
“That is the difference between a big business and a trust. A trust is an arrangement to get rid of competition, and a big business is a business that has survived competition by conquering in the field of intelligence and economy. A trust does not bring efficiency to the aid of business; it buys efficiency out of business. I am for big business, and I am against the trusts. Any man who can survive by his brains, any man who can put the others out of the business by making the thing cheaper to the consumer at the same time that he is increasing its intrinsic value and quality, I take off my hat to, and I say: “You are the man who can build up the United States, and I wish there were more of you.”
“There will not be more, unless we find a way to prevent monopoly. You know perfectly well that a trust business staggering under a capitalization many times too big is not a business that can afford to admit competitors into the field; because the minute an economical business, a business with its capital down to hard pan, with every ounce of its capital working, comes into the field against such an overloaded corporation, it will inevitably beat it and undersell it; therefore it is to the interest of these gentlemen that monopoly be maintained. They cannot rule the markets of the world in any way but by monopoly. It is not surprising to find them helping to found a new party with a fine program of benevolence, but also with a tolerant acceptance of monopoly.”
Wilson, Woodrow. “Chapter 8/Monopoly, or Opportunity?” The New Freedom; a Call for the Emancipation of the Generous Energies of a People. New York and Garden City: Doubleday, Page, 1913. 180-181. Print.