How did steamboats result in prices of goods decreasing?

Steamboats changed the types of goods available to local markets.

Explanation:

By increasing transportation speed, farmers could sell surplus crops to remote locations without the produce spoiling during the trip. Selling surplus crops stimulated economic growth in local communities.

--Magnus

he wanted some anime.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.