What were the problems with the articles of confederation, and why did the united states opt for a federal system of government?

The creation of the articles of confederation proved the fact that is was weak, it didn't allow the central government to raise taxes, it led to an increase in state taxes, most of the powers that the current government has in this day and age were given to the state governments, but there wasn't a lot of trading since it was confined to the state, and the states were more or so different than others, different currency, different alliances, which leades to Shay's Rebellion, which raises concern among the colonies that we should opt in for a federal system of government.

the process is called revolution because it was a process of great economic-social transformations that began in england in the xviii century.

the industrial mode of production spread throughout much of the northern hemisphere throughout the xix and early xx centuries.

the effect of this revolution was the distance between the countries, with respect to economic and political power.   after all, not all industrialized at the same time, remaining in the condition of suppliers of raw materials and agricultural products to the industrialized countries.

these differences mark to this day the nations of the world that are divided between developed and developing countries. one way to measure whether a country is advanced is to assess how industrialized it is.