Cluster development (or cluster initiative or economic clustering) is the economic development of business clusters. The cluster concept has rapidly attracted attention from governments, consultants, and academics since it was first proposed in 1990 by Michael Porter. Many governments and industry organizations around the globe have turned to this concept in recent years as a means to stimulate urban and regional economic growth. As a result, a large number of cluster initiative organizations were started during the 1990s, and the trend continues. The first comprehensive study of cluster initiatives around the world was reported in the "Cluster Initiative Greenbook" published by Örjan Sölvell, Christian Ketels and Göran Lindqvist, with a foreword by Michael Porter. The report was presented at the annual meeting of The Competitiveness Institute, TCI, in Gothenburg in 2003. A follow up study in 2005 covered more than 1400 cluster initiative organizations around the globe. In 2013, a decade after the first Greenbook, The Greenbook 2.0 was launched at the TCI global conference in Kolding, Denmark.
While the purpose of cluster initiative organizations is to promote economic development within the cluster by improving the competitiveness of one or several specific business sectors, it is important to differentiate these public-private organizations from policy-making organizations at different levels, e.g., national government units such as the UK Department of Trade and Industry (DTI), and supranational bodies such as the OECD and the European Commission and from industry associations comprising firms within one business sector, e.g., biotech, steel.
More specifically, cluster initiatives are organizations or projects that are organized as collaborations between a diverse number of public and private sector actors, such as firms, government agencies, and academic institutions. Whereas lobbying policymakers may be one of the cluster initiative’s activities, cluster initiatives generally are involved in a broad range of activities, e.g., supply-chain development, market intelligence, incubator services, attraction of foreign direct investment, management training, joint R&D projects, marketing of the region, and setting technical standards.
In June 2007, the European Cluster Observatory was launched. Financed by the European Commission DG Enterprise and Industry, it provides information about clusters, cluster initiatives, and cluster policy throughout 32 European countries.An example of a business cluster from the United Kingdom is the Northeast of England Process Industry Cluster (NEPIC). Information on this cluster and other European Clusters can be found on the European Cluster Observatory.
In 2009, under the Competiveness and Innovation programme, the European Commission launched the European Cluster Excellence Programme from which the European Secretariat for Cluster Analysis (ESCA) was established. ESCA has since worked to spread best practice and improve the professionalism of Cluster managers across Europe by benchmarking, advising on best practice, analysing and accrediting Cluster organisations across the EU. ESCA's work has now extended beyond the borders of the EU including North America and Asia. By October 2014 ESCA had analysed 610 cluster organisations in 35 countries leading to Bronze level labelling.  By October 45 Clusters have be awarded the Gold Label. An example of an ESCA Gold label Cluster is the North East of England Process Industry Cluster (NEPIC).
Residential cluster development
In the United States, residential cluster development in new housing developments is a means of permanently protecting open space and environmental resources, usually with conservation easements, while still allowing landowners to develop their property. Houses are built closer together on part on the land rather than spread evenly on large lots over the whole development.
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- Cluster Organisations in Europe - insights from Bronze and Gold label Assessments (Report). European Secretariat for Cluster Analysis. 23 September 2014. http://www.cluster-analysis.org/downloads/InputPaper_COMWorkshopSeptember_published_140918.pdf. Retrieved 1 October 2014.
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