"Was the U.S. Constitution essentially an economic document?"

The U.S. Constitution was enacted to give our country a basis on which to grow and prosper. It outlined a system of checks and balances between three separate and yet united sects of government; the Legislative Branch, which creates the laws; the Executive Branch, which enforces the laws; and the Judicial Branch, which interprets the laws. These three branches of government coincide with each other, and the rights and laws at the state level. And this is what i believe the constitution was created to outline, this system in its entirety. However, i do believe that along with the outline of the Government, our Fore Fathers weaved an economic system into the articles of the constitution. 

The constitution does a good deal to lay out plans of taxation, and money retrieval to fund its actions. And this taxation is what allowed the Government to exist. Without it there would be no way for the government to achieve any means what so ever. This is supported by Article 8 of section 1. And by reading that article, you can see that within the idea of the legislative side, an economic system almost in its entirety is laid out. Because for anything to work in the system that our Fore Fathers beset, money was needed, and an economic system provided that money. I believe that the the creation of a sustainable government was the primary goal of the U.S. Constitution, but within the Governmental ideas, laid a economic outline for our country.