| Abstract: | A decomposition of regional sectoral manufacturing employment variances is used as a basis for allocating instability to the markets in which the instability originates, including national, regional and internal. The effects of such attributes of industry structure as market power and economies of scale upon manufacturing sector instability is also investigated. Using data for Arizona over the years 1965–1985, 43% of Arizona's manufacturing instability is attributable to instability in national markets. The hypothesis that Arizona's instability can be attributed to market power differentials is rejected, but the effect of scale economy differentials is supported. |
