EJAE 2016, 13(2): 78-85 ISSN 2406-2588 UDK: 332.122:338.45(450) 332.146.3 DOI: 10.5937/ejae13-11642 Original paper/Originalni naučni rad

ACCESSIBILITY TO NODES OF INTEREST: DISLOCATION OF THE INDUSTRIAL DISTRICTS OF

Gioacchino de Candia

Studio de Candia, via Salgari, 6, Terlizzi,

Abstract: The present research starts by a series of experiences gained by the author on the theme of attractiveness/accessibility of territories, in light of the most recent dynamics for the analysis. The equation model used is of gravitational type. Specifically, the impedance function is used in the form of logistics, which has so far provided the best results in the analysis of territories. The research is conducted at the municipal level. The paper aims to analyze the connection between these works and the map of industrial districts, recently produced by ISTAT. The Key words: analyzed region, as in other publications, is Tuscany, which provides regional development, the details on the municipal map of accessibility in relation to the impedance curves, location of industrial clusters. Th e metropolitan city of is territorial statistics, treated separately. Th e aim is to provide policy makers with the best infrastructure, socio-economic information for the economic and financial admin- industrial districts, istration of territories. municipality.

INTRODUCTION a list of industrial clusters identifi ed from local labor systems, the latter identifi ed to commuting Industrial districts are a typical production between municipalities for work, collected dur- th model of the Italian economy. St arting from the ing the 15 General Census of Population, which notion of industrial districts theory, which has altered the map of the local labor systems (ISTAT, its roots in the works of Marshall (1890), further 2014). studies have found fertile ground in Italy. Follow- Th e criteria for identifying districts used by ing the theoretical and empirical contribution of ISTAT refer to the classic concept of industrial Giacomo Becattini (1979), fu rther analysis on in- district, the source of Marshall and Becattini in dustrial districts has been conducted, producing a Italy (Marshall, 1890; Becattini, 2000) and are to substantial empirical study on the subject. Th e Na- identify the local systems characterized by the tional Institute of Statistics (ISTAT) has developed presence of small or medium-sized enterprises, 78 * E-mail: [email protected]    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest with a high spatial concentration of manufacturing employment focused in the major industry, while other companies present in the local system are complementary or auxiliary. with Th e ISTAT procedure in 2011 led to identifi - cation of 141 industrial districts from 611 local where c is the minimum cost and c the systems on the Italian territory. min max maximum observed cost and In this report, we analyze the distribution of districts in the region of Tuscany, in the light of the map of the territorial attractiveness/ accessibil- ity analyzed in the previous work of the author. Th e impedance functions are synthesized using the simple average between indices. An additional summary of results shows the weighted arithmetic MATERIALS AND METHODS mean, using the resident population as calculated based on the 15th Italian Population and Housing Th e starting point are the publications pro- Census (ISTAT, 2011). According to the experien- duced by the author on the issue of accessibility to ce gained by the author, two diff erent approaches nodes of interest (de Candia et al., 2014; de Candia, emerge, namely the one called “weighted average” 2015) and the map of industrial districts recently (WA), and the other one “average weighted index” developed by ISTAT (2015). (AWI), with the following formulations: Th e map of industrial districts is overlaid with fi gures relative to the “summary of impedance (weighted average - WA) function in the form of logistics, by arithmetic average” and pie charts relating to the synthesis, the impedance functions in the form of logistics, (average weighted index - AWI) weighted by the resident population. Th e reference territory are the municipalities in Tuscany. where xij is the impedance function developed As regards the processing of accessibility/at- for the municipalities i and infrastructure j, tractiveness, reference is made to the model defi ned and pi is the population of the municipality j, “gravitational”, according to the known equation: while μi is the weighted arithmetic mean for each municipality i. Th e infrastructure considered at the municipal level is as follows:

where Ai is the accessibility of a resident of the ◆ hospitals (public and private); area i compared to the nodes j in the region D, ◆ grade schools (upper secondary level); β Wj is a measure of activities or services (mass ◆ railway stations (platinum, gold and silver); opportunities) in the area j, β is a calibration ◆ airports. parameter (used to account for the eff ects of As for the methodology for development of agglomeration) and f(ci,j) is a function of im- industrial clusters by ISTAT, the procedure was pedance generally decreasing with the cost ci,j adopted for 2011 using the criteria introduced for (or t he distance or travel time). identifi cation of industrial districts in 2001 based

Th e i mpedance f(ci,j, α) function takes the form on the use of the territorial concentration coef- of logistics, already used successfully by the author: fi cient. 79    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest Th e procedure is hierarchical and comprises ITAadd, tot indicates the total employees (in- four steps aimed at: dustry and services) in Italy. 1. identifi cation of local systems, mainly man- For local systems that have index values above ufacturing; the national average in manufacturing or in 2. identifi cation of local systems, mainly man- services to companies or consumer services ufacturing of small to medium-sized enter- sector, the prevalence is calculated, in order prises; to verify which of the three groupings of eco- 3. identifying the main industry of local sys- nomic activity prevails at the level of the local tems, mainly manufacturing of small to system: medium-sized enterprises; [(SLLadd, ateco / ITAadd, ateco) - (SLLadd, 4. identifi cation of industrial districts. tot / ITAadd, tot)] * ITAadd, ateco For each of the local labour markets, territo- Th e h ighest value (employment base) in one rial concentration ratios were calculated, using of the economic activities (manufacturing, the data for employees in local economic units business services and consumer) indicates the recorded in the IX General Census of Industry and prevalence. When in a local system, this value Services (ISTAT, 2011). Ne xt, they used the em- corresponds to the manufacturing industry, ployment data for local units of enterprises, public where the local labor market is considered to institutions and non-profi t institutions to compare be mainly manufacturing. the proportion of the local system in a particular Employment areas, mainly manufacturing, are productive sector with the national share of the identifi ed at the end of this step. same sector. Step 2 : Identi cation of local systems mainly manu- Following the order of the above-given list, facturing of small to medium enterprises we get the following procedure, comprising four phases: For each local system and for each size class of the local unit - or micro (up to 9 employees), Step 1: Identi cation of local systems mainly manu- small (10 to 49 employees), medium (50 to 249 facturing. employees) and large (250 or more employees) For each of the local labour systems on the - is calculated by the following coeffi cient of national territory (SLL) is calculated by a co- territorial concentration: effi cient of territorial concentration in each of its businesses, which make up the productive (SLLadd (clad), manif / ITAadd (clad), manif) sectors of industry and services, by making the / (SLLadd, manif / ITAadd, manif) following report, based on Ateco classifi cation where (ISTAT, 2009): SLLadd (clad), manif indicates the employees of (SLLadd, ateco / ITAadd, ateco) / (SLLadd, each size class production units of manufactur- tot / ITAadd, tot) ing in a local system; where ITAadd (clad), manif indic ates the employees SLLadd, ateco indicates the employees of a sin- of each size class production units of manufac- gle economic activity in a local system; turing in Italy; ITAadd, ateco indicates the employees of a sin- SLLadd, manif indic ates the manufacturing gle economic activity in Italy; industry workers in a local system; SLLadd, tot indi cates the total number of em- ITAadd, manif indicates the workers in the manu- ployees in the local system; facturing industry in Italy. 80    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest Aft er t he procedure, you get the local manufac- Step 4: Identi cation of industrial districts turing systems of small and medium-sized enter- A local system mainly manufacturing of MS- prises (MSME). Th e local labor systems of large MEs is identifi ed as industrial district when enterprises are treated separately to determine its main industry consists mostly of small and how many of them have “District”. medium-sized production units, if they occur in conjunction with the following two condi- Step 3: Identify the main industry of local systems tions: mainly manufacturing of small to medium-sized a) (SLLadd (mpmi), ind_p / SLLadd (tot), enterprises ind_p) > 50,0% Th e loca l systems mainly for manufacturing MS- where MEs are now examined in order to identify the SLLadd (mpmi), ind_p indicate s the main main industry that characterizes the local econ- industry workers employed in SMEs in a omy. local system, mainly manufacturing of MS- Th e fi rst step is to calculate, for each local mani- MEs; facturing system of MSMEs, a coeffi cient of terri- SLLadd (tot), ind_p indicates the total em- torial concentration relative to each of the types of ployees in the main industry, mainly a local industry in which manufacturing was distributed. manufacturing of MSMEs. Th e formula used is as follows: b) (SLLadd (m_imp), ind_p / SLLadd (m_imp), ind_p) > 50,0% (SLLadd, ind / ITAadd, ind) / (SLLadd, man / (SLLadd (p_imp), ind_p / SLLadd (m_imp), ITAadd, man) ind_p) > 50,0% where where SLLadd, ind indicates the employees of a single SLLadd (m_imp), ind_p indicates the main type of industrial system, mainly local manufac- industry workers employed in production turing; units of micro size in a predominantly local ITAadd, ind indicates the employees of a single manufacturing of MSMEs; SLLadd (p_imp), ind_p indicates the main range of industries in Italy; industry workers employed in production SLLadd, man indicates the manufacturing indus- units of small size in a predominantly local try workers in the predominantly local manufac- manufacturing of MSMEs; turing; SLLadd (m_imp), ind_p indicate s the main ITAadd, man indicates the workers in the manu- industry workers employed in production facturing industry in Italy. units of medium size, when there is only Th e next step implies comparing the local systems one production unit, in a predominantly which have a coeffi cient of spatial concentration local manufacturing of MSMEs. in the types of industries greater than the national At the end of this procedure, you will get the average to determine the prevailing type. To de- clusters of MSMEs. For identifi cation of the lo- cal labor systems of large companies with district termine this prevalence, the second formula ap- characteristics, given that the fi rst two steps are plies, as follows: common to all types of employment areas, it [(SLLadd, ind / ITAadd, ind) - (SLLadd, man / comes to adapting the steps 3 and 4 to enterprises, ITAadd, man)] * ITAadd, ind mainly manufacturing, with a number of employ- Th e high est value (employment base) in one of the ees of 250 and beyond. types of industries indicates the prevalence and For more details, please see the relevant volume corresponds to the industry’s main local system. recently published by ISTAT. 81    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest RESULTS AND DISCUSSION As regards the type of districts, Table 1 provides an overview of main activities, which are the typical Industrial districts in Tuscany (17) are almost centuries-old tradition of the region. Mainly, those all included in the provinces of Pisa--Pistoia- include textiles - clothing, leather processing and Prato-Florence-Arezzo. leather for making of shoes and bags, jewelry and Th ree districts are in the province of Siena. paper and paperboard processing. Two out of se venteen industrial clusters were Prato district is particularly interesting, which the characteristic of large enterprises and are lo- started from artisan businesses in the textile - ap- cated in the area of Barga (LU) and Montevarchi parel and has built a solid reality in the industrial (AR). sector, as highlighted by other authors (Dei Ottati, Th ere is no area of this district in the provinces 2015). of Massa-Carrara, Livorno and Grosseto. In total, 117 municipalities are included in the industrial districts, of which 21 large enterprises. Th e districts have a population of 1,489,303 inhabitants, i.e., 146,663 units and 551,226 local employees, according to its Census of 2011. In fi gures, districts are marked with a black stroke. Figure 11 clear ly shows that as many as 12 dis- tricts are distributed along the ridge-shaped arc that connects the provinces of Pisa, Lucca, Pistoia, Prato, Florence and Arezzo. In fact, according to the summary of imped- ance functions, using the arithmetic mean, these areas are the most attractive/accessible in the re- gion, with three districts of the province of Siena, Figure 1. Based on “simple average” which are wedged near the Arezzo area. Also Figures 2 and 3 clearly show the distri- bution of districts; these cartograms, based on the “population served”, show how the industrial districts of Tuscany can be distributed precisely in the areas where infrastructure is more easily accessible. In fact, the main area of settlement of industrial districts follows the director of the A1 motorway, which crosses it entirely, to connect to the A11 at A12 towards Florence and Pisa.

1 Missing data in the fi gures refer to the municipality of Florence, which is treated separately, and the towns of Figline e Incisa Valdarno, Scarperia e San Piero, Crespina Lorenzana, Castelfranco Piandiscò, Pratovecchio Stia, Silano Giuncugnano, Casciana Terme Lari e Fabbriche di Vergemoli, which were established during the period Figure 2. Based on WA 2014-2015. 82    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest THE CASE STUDY OF FLORENCE

Th e main city of the region was deliberately isolated from the map, to be analyzed separately. As for accessibility, extensive dissertation on this subject was conducted by the author in earlier studies (de Candia et al., 2014; de Candia, 2015) analyzing the location of the infrastructure present for each constituency/district2. Th e capital also lies outside the district areas, as part of a non-manufacturing local system, of less interest for the current analysis. Florence deserves to be further researched, as regards the urban strategies of development of the transportation plan TOD (Transit-Oriented Figure 3. Based on AWI Development) highlighted by other authors (Papa et al., 2015). C onsidering the importance of the town and Table 1. Distributi on of indus trial districts of Tuscany 2011 the central role in the administrative region, the Industrial Districts Specialization further increase of analysis and research could Papermaking industries and address the role of the capital in an attempt to LUCCA polygraphic industry increase investments in R & D by companies, en- MONTECATINI - Skins, leather and footwear courage the process of internationalization, as well TERME as investments associated with the supply chain PISTOIA Textiles and clothing (Colovic, 2007). BORGO SAN LORENZO Skins, leather and footwear Ano ther aspect to be carefully analyzed is the possibility of building a model of multi-modal CASTELFIORENTINO Skins, leather and footwear transportation network (Djurhuus, 2015), which EMPOLI Textiles and clothing would facilitate commuting - work of the people FIRENZUOLA Mechanic industry not only of the capital, but the entire region.

SAN MINIATO Skins, leather and footwear CONCLUSIONS Jewelry, musical instruments AREZZO etc. Th e map clearly shows the accessibility/territo- BIBBIENA Household goods rial attractiveness traced using the logistic function SANSEPOLCRO Textiles and clothing as impedance fi ts perfectly with the distribution of

PIANCASTAGNAIO Skins, leather and footwear industrial districts. Th is not only demonstrates the eff ectiveness POGGIBONSI Household goods of the model used and delivers more than gratify- SINALUNGA Household goods ing results, but it also shows that the distribution PRATO Textiles and clothing of districts slavishly follows those territories, mu- nicipalities, which are most supplied with the basic BARGA Papermaking industries and (large company) polygraphic industry infrastructure, as well as the improved accessibility. MONTEVARCHI Skins, leather and footwear (large company) 2 Th e town of Florence is divided into 5 districts/neighbor- hoods: Centro storico, Campo di Marte, Gavinana-Gallu- Source: based on ISTAT data zzo, Isolotto-Legnaia e Rifredi. 83    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest Th eref ore, the company chooses to locate where de Candia, G., & Chiocchini, R. (2014). Accessibility the territory has the best features to facilitate trade to nodes of interest: A practical application of the in goods and services, as described in detail in the various forms of the impedance curves. Romanian case of Tuscany. Review Of Regional Studies, 10(1), 47-56. In addition, the company itself tends to change Djurhuus, S., Hansen, H. S., Aadahl, M., & Glümer, C. (2015). Building a multimodal network and deter- the territory onto which it settles, depending on the mining individual accessibility by public transporta- operation mode it has within the same territory. tion. Environment and Planning B, 43(1), 210-227. In the c ase of Tuscany, farms and related dis- doi:10.1177/0265813515602594. tricts have found fertile ground, as the region is ISTAT. (2009). Classi cazione delle attività economiche - suitable for the establishment of manufacturing Ateco 2007, Istat, Metodi e norme n. 40 Anno 2009. enterprises, able to “create a system”. In fact, most Retrieved March 30, 2016, from http://www3.istat. of the Tuscan industrial districts activities have it/dati/catalogo/20090615_00/. In Italian. been present for centuries on the territory. ISTAT. (2011). 15° Censimento generale della popolazi- A further boost to this type of study lies in the one e delle abitazioni. Retrieved March 30, 2016, possibility to expand to all Italian municipalities. Fur- from http://www.istat.it/it/fi les/2012/12/volume_ thermore, in order to provide a detailed map of the popolazione-legale_XV_censimento_popolazione. pdf. In Italian. territorial accessibility and their possibility of estab- lishment at the municipal level, this type of research ISTAT. (2011). 9° Censimento dell’industria e dei servizi may involve not only Italy but the entire Europe. e Censimento delle istituzioni non pro t. Retrieved March 30, 2016, from http://www.istat.it/it/censi- Especially, in the light of the recent and ter- mento-industria-e-servizi/industria-e-servizi-2011. rible killings involving the city of Paris and other In Italian. European cities, it seems necessary to be better ISTAT. (2014). I sistemi locali del lavoro 2011, Nota me- conversant with the territory and involve all local todologica. Retrieved March 30, 2016, from http:// stakeholders, in order to successfully manage and www.istat.it/it/archivio/142676. In Italian. prevent all criminal acts. ISTAT. (2015). I distretti industriali 2011. Retrieved March Tuscany is a good example of how to create the 30, 2016, from http://www.istat.it/it/fi les/2015/10/I- paths of business development together with the lo- distretti-industriali-2011.pdf. In Italian. cal governance in order to improve the socio-eco- Marshall, A. (1890). Principles of economics. London: nomic performances of the region (Porter, 2003). Macmillan. Further research may relate to the assessment of Ottati, D.G. (2015). Global competition and entrepre- the concept of proximity and location of activities neurial behaviour in industrial districts: Trust re- of the population (Torre et al., 2005) in the light lations in an italian industrial district. Retrieved of the distribution of industrial districts and, more March 30, 2016, from https://www.researchgate.net/ publication/241202242_Global_competition_and_ generally, production activities. entrepreneurial_behaviour_in_industrial_districts_ REFERENCES Trust_relations_in_an_Italian_industrial_district Papa, E., & Bertolini, L. (2015). Accessibility and Tran- sit-Oriented Development in European metropolitan Becattini, G. (2000). Il distretto industriale. Un nuovo areas. Journal of Transport Geography, 47, 70-83. modo di interpretare il cambiamento economico. doi:10.1016/j.jtrangeo.2015.07.003 Torino: Rosenberg & Sellier. In Italian. Colovic, A. (2007). Appropriability, Proximity, Routines Porter, M. (2003). Th e Economic Performance of Re- and Innovation. In: DRUID Summer Conference, gions. Regional Studies, 37(6/7), 549-578. 2007-06-18, Copenhagen. doi:10.1080/0034340032000108688 de Candia, G. (2015). Accessibility to Nodes of Interest: Torre, A., & Rallet, A. (2005). Proximity and Localiza- Demographic Weighting the Logistic Model. Expert tion. Regional Studies, 39(1), 47-59. Journal of Economics, 3(3), 155-160. doi:10.1080/0034340052000320842 84    EJAE 2016 13 (2) 78-85 de Candia, G. Accessibility to nodes of interest

PRISTUP ČVORNIM TAČKAMA: DISLOKACIJA INDUSTRIJSKIH OBLASTI U TOSKANI

Rezime: U radu je dat prikaz različitih iskustava autora na temu atraktivnosti/dostu- pnosti teritorija. Za potrebe analize korišćen je gravitacioni model. Tačnije, logistika je korišćena kao funkcija impedanse, koja je do sada pružila najbolje rezultate prilikom sprovođenja analize teritorija. Celokupan postupak se sprovodi na opštinskom nivou. Rad ima za cilj da ispita vezu između ovih radova i mape indusrijskih oblasti koju je nedavno objavio Nacionalni institut Ključne reči: za statistiku (ISTAT). Kao i u drugim publikacijama, analizom je obuhva- regionalni razvoj, ćena italijanska regija Toskana, koja daje detaljne podatke o dostupnosti na kriva impedanse, opštinskom nivou u odnosu na lokaciju industrijskih klastera. Grad Firenca teritorijalni statistički podaci, je zasebno posmatran. Cilj rada jeste da se tvorcima politike pruže najbolje i infrastruktura, najpreciznije informacije za potrebe upravljanja teritorijama u ekonomskom industrijske oblasti, i finansijskom smislu. opština.

Received: August 19, 2016 Correcti on: September 12, 2016 Accepted: September 19, 2016

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