Increased productivity by farmers made possible by thwe development of farm machinarty i the 1800s resulted in overproduction and a decline in the prices of farm products. in what decade did this decline begin?

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.