The idea of a missing middle in India typically refers to the relative paucity of mid-sized firm. India has many very small firms, and a few very big ones (by Indian standards), but the small ones tend not to grow. This characteristic raises a host of questions about the efficacy of government policy and policy thinking, since it is the growth of firms that creates new jobs, and new jobs are sorely needed in India. But there is also a new angle on the missing middle, which looks at how economic activity is geographically distributed. Here, the missing middle is the lack of growth in medium density clusters of economic activity. The big cities and now the villages (especially those connected by new roads) may be doing wellthough starting from different basesbut the challenge for future growth will lie in Indias towns and smaller cities.
Klaus Desmet, Ejaz Ghani, Stephen OConnell, and Esteban Rossi-Hansberg have recently analysed how employment density in India in the year 2001 was related to employment growth over the subsequent five years. Employment density is closely related to city size, with the big metros having the highest densities. In the case of manufacturing, the pattern they found suggested that subsequent growth was, on average, higher the lower the initial employment density. This pattern is indicative of employment spreading out to smaller cities and towns (with lower initial densities). It is what we would observe if the disadvantages of increased congestion outweigh the advantages of clustering in a location that already has infrastructure, both physical and social.
However, manufacturing in India is a small, anaemic sector of the economy. Fixing its problems relates to the first kind of missing middle, that of the size distribution of firms. The countrys growth has relied heavily on the services sector. Here, the evidence from India is different. In services, initial employment densitythat is either low or highis associated with subsequent employment growth, but this is not so much the case for the medium-density clusters. This result holds for informal as well as formal sector firms, and contrasts with the pattern for the United States and China, where one sees a dispersion of economic activity. Indias second and third tier cities are not generating as many jobs as one might expect as the country grows richer.
Does increased geographic concentration matter? There are a couple of reasons for concern. One is the strain