Redispersion is different from dispersion: spatial economy of multiple industries

In the literature of new economic geography, it is observed that the manufacturing sector disperses because of high transportation costs, agglomerates for intermediate transportation costs, and redisperses for low transportation costs. This paper examines a model with multiple manufacturing industries and finds that the redispersion process is different from the dispersion process. More precisely, there is at most one industry that disperses in the redispersion process while all industries disperse in the dispersion process. Furthermore, it is shown that the interaction of demand, increasing returns, and transportation costs is enough to derive a separating equilibrium where at least two industries agglomerate in different regions.