Antonietti, Roberto; Cainelli, Giulio; Lupi, Claudio - In: Economics Letters 118 (2013) 2, pp. 360-363
business service (Kibs) firms in the metropolitan region of Milan, using micro-geographic data and nonparametric methods. Our … main results are that: (i) compared to other manufacturing and service industries, Kibs firms show a “natural tendency” to … cluster; (ii) this tendency increases with the degree of vertical disintegration of Kibs firms. …