In this paper we examine the structure and growth of micro and small enterprises (MSE) sector in Assam. We analyze the growth of the sector by different enterprise types in terms of different indicators such as number of units, employment, value added and fixed capital. The analysis, based on...

We model spatial clusters of similar firms. Our model highlights how agglomerative forces lead to localized, individual connections among firms, while interaction costs generate a defined distance over which attraction forces operate. Overlapping firm interactions yield agglomeration clusters...

Measures of entrepreneurship, such as average establishment size and the prevalence of start-ups, correlate strongly with employment growth across and within metropolitan areas, but the endogeneity of these measures bedevils interpretation. Chinitz (1961) hypothesized that coal mines near...

Employment growth is strongly predicted by smaller average establishment size, both across cities and across industries within cities, but there is little consensus on why this relationship exists. Traditional economic explanations emphasize factors that reduce entry costs or raise...

Measures of entrepreneurship, such as average establishment size and the prevalence of start-ups, correlate strongly with employment growth across and within metropolitan areas, but the endogeneity of these measures bedevils interpretation. Chinitz (1961) hypothesized that coal mines near...

Draft chapter for the forthcoming Handbook of Regional and Urban Economics, Vols. 5A and 5B This paper reviews academic research on the connections between agglomeration and innovation. The authors first describe the conceptual distinctions between invention and innovation. They then discuss how...

How do new industries emerge? This paper aims to answer this question by analyzing the key actors in this process. We focus on the new industry of service robot. By using data of Japanese patent applications, we analyze the role of new firms and of collaborations. We find that the emergence of...

An important new literature on gross employment flows has produced a great outpouring of stylized facts. In this paper we examine one aspect of this literature through the lens of dynamic models and theories of industrial evolution. We extend the Davis and Haltiwanger methodology for analysis of...

Why are some places more entrepreneurial than others? We use Census Bureau data to study local determinants of manufacturing startups across cities and industries. Demographics have limited explanatory power. Overall levels of local customers and suppliers are only modestly important, but new...

An important new literature on gross employment flows has produced a great outpouring of stylized facts. In this paper we examine one aspect of this literature through the lens of dynamic models and theories of industrial evolution. We extend the Davis and Haltiwanger methodology for analysis of...