China would lower the value of there money and have large tariffs on other countries.
Explanation:
Anything that was imported, they would put large tariffs and make it cheaper for things made in China. Because of this the Chinese citizens would choose to the cheapest option evaluable. This would always be China made products.
In the United States, it was largely "white land-holding men" who controlled vast wealth and many businesses and had great influence on US finances during this time, since they had the most political power as well.