96-F-9. Kanemoto, Yoshitsugu, Toru Ohka-wara and Tsutomu Suzuki, "Agglomeration Economies and a Test for Optimal City Sizes in Japan", Apr. 1996.

We estimate aggregate production functions for metropolitan areas in Japan to derive the magnitudes of agglomeration economies. Using the estimates of agglomeration economies, we test if Japanese cities, in particular Tokyo, are too large.