During the cold war the idea of mutual destruction was the concern and safety of the day. Each major nation was building enough nukes and delivery systems that they could completely destroy their enemies if attacked. During this same period the idea came that if all the currencies and economies were tied together no one could be attacked without hurting the finances of the aggressing nation.
There is only one problem with this concept, what happens if one of the nations gets a debt problem? It’s like getting in a partnership with your best friend. Then your friend never shows up to work on time, spends company money on lavish lunches and beer, and then calls it a day early. Despite all this the company makes a good profit and you are bound to split it with the dead beat partner. This could be the world economy.
One nation decides they don’t need productivity and spends, spends, spends all the other major nations whose banks own large portions of their treasury bills is obligated to bail them out of their situation so the bonds don’t default. Really politically corrupt or impotent nations will realize that the other nations must help them so they continue to avoid tough problems to further their political careers.
This situation only leaves two solutions to the problem of corrupt and lazy governments. Your nation must either spit itself out of the system by becoming financially stable on its own (which getting any government to eliminate debt is difficult) or you must combine all nations into one government so no one small faction can bring down all. Which is the better answer is beyond the scope of this article, but it makes some great debates around is your nation strong enough to stand on its own or if it’s even fair to the world to do that.