He did nothing, thinking the economic crisis would mend itself with time.
The only Europeans that were allowed to trade with the Japanese following the expulsion of all christians were the Dutch.
During the Sakoku, the isolationist foreign policy of the Tokugawa shogunate, the only contact with european influence allowed was with the Dutch who had a factory at Dejima in Nagasaki, and through the Dutch East India Company who was allowed to operate in Nagasaki.
Steffens set out to
describe the corrupt systems of certain typical
cities.
Hope this helps!
The problem was that the confederation printed it without thinking much about it which resulted in there being a lot of it and it essentially became worthless because they printed money when they needed it instead of growing the economy. Trading partners became wary and stopped trading with them.