Answer: 1. Manufacturing
2. Banking
3. Construction
Explanation: Though the War of 1812 severely damaged the American economy because of the British blockade, the aftermath gave a dramatic boost to certain sections that helped rebuild the American economy.
The British blockade of the American coast created a shortage of cotton cloth, leading to the development of American manufacturing capabilities, with the creation of a cotton-manufacturing industry at Waltham, Massachusetts.
The Americans were incapable of financing the war and this exposure of the nation's financial weaknesses fueled the decision by Congress to charter the Second Bank of the United States in 1816.
The war also encouraged the construction of the Erie Canal, a project that was built to promote commercial links but could also be used for military purposes if there was ever a need for it.
