Question

What was the effect of Japan's self-imposed isolation?

Answer 1

Helped their economy and maintained the status quo known as the feudal system.

Explanation:

While this time period aided the Japanese in becoming extremely self-sufficient and helped their culture remain very homogenous and largely untouched by the feared outside presence, the economy was not as stable in the long run for lack of experience with the natural ups and downs of an integrated trade network.

The shogun was able to maintain his power over his subjects by limiting external contact and minimizing the risks of an uprising.