It increased the demand for slave labor to grow cotton.
The correct answer to this question is "central government." As a result of the British North American Act of 1867, Canada had its own central government. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
Any war effects the economy. War means you have to pay for weapons, ammo, etc. Not to mention the cost of training all the soldiers and producing tools of war (Such as cannons). This war effected the economy very badly.