Tracing the Evolution of Agglomeration Economies: Spain, 1860–1991.

Using district population in Spain between 1860 and 1991, recorded approximately every decade, this article examines whether initial population affects subsequent population growth. While such a relationship between these two variables hardly existed during the second half of the nineteenth century, this link increased significantly between 1910 and 1970, although this trend was abruptly interrupted by the Civil War and the autarkic period that followed. The intensity of this relationship decreased in the 1970s, a process that continued during the 1980s. Our findings also stress that agglomeration economies were stronger in medium-size districts, especially from 1960 onwards. [ABSTRACT FROM PUBLISHER]

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