Cities publish books about their economic conditon, either as a report, or as a kind of civic booster to attract residents and businesses. They are not only a look into the past, but a resource to compare changes over time.
Sizing Up Tokyo 1969
A report on the economic situation in Tokyo in 1968.
Numerous tables, charts, and plots. This is a summary of a larger report. Potentially useful for writing about the conditions in Japan postwar.
See also: Midcentury Japan, Kanagawa News. This publication also reported on the economic conditions in the area.