Did the US become a Teador or a creditor nation after World War 1?

Answer 1

Yes,

When the war began the US was neutral but brought hundreds of tons of American supplies to Europe to support both sides of the war. The allies payed in gold, and the US continued to provide them with production even after they themselves entered the war because the US could produce at levels no other country could.

After the War the European countries were in a lot of debt. Yet, the US was economy was doing very well (roaring twenties). The US would give loans to Germany (in dollars) that Germany would pay the allies for their reparations, then the Allies would pay back their loans to the US with the dollars bolstering the US economy.

The Dawes Plan, a diplomatic agreement between the major powers of WW1 made by Charles Dawes, supported this plan by reducing the reparations of Germany and provided more bank loans to Germany to try and stabilize the European economy.

So after the war all the great powers of Europe needed to repay loans to the US, making the US the creditor of the world.

However, this plan was incredibly unstable as if the US stopped providing a large amount of loans to Germany the cycle would fall apart. With the Stock Market crash of 1929 this is exactly what happened.

I hope I explained that well.

sources: America's History 6th edition, Bedfordtmartins