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A least squares algorithm for fitting additive trees to proximity data

Soete, Geert - In: Psychometrika 48 (1983) 4, pp. 621-626

Persistent link: https://www.econbiz.de/10005757722

The conjunctive model of hierarchical classes

Mechelen, Iven; Boeck, Paul; Rosenberg, Seymour - In: Psychometrika 60 (1995) 4, pp. 505-521

Persistent link: https://www.econbiz.de/10005757797

Self-organization of R&D search in complex technology spaces

Silverberg, Gerald; Verspagen, Bart - In: Journal of Economic Interaction and Coordination 2 (2007) 2, pp. 195-210

Persistent link: https://www.econbiz.de/10005759598

A Comment on Variance Decomposition and Nesting Effects in Two- and Three-Level Designs

Konstantopoulos, Spyros - Institute for the Study of Labor (IZA) - 2007

the hierarchy on the variance decomposition and the clustering effects have not been well documented. This paper discusses … how omitting one level in three-level models affects the variance decomposition and clustering in the resulting twolevel …

Persistent link: https://www.econbiz.de/10005762262

RBF CENTERS INITIALIZATION USING FUZZY CLUSTERING TECHNIQUE FOR FUNCTION APPROXIMATION PROBLEMS

Guillén, A.; Rojas, I.; González, J.; Pomares, H.; … - In: Fuzzy Economic Review X (2005) 2, pp. 27-44

design of the algorithm is inspired in previous clustering algorithms but adding some features to adapt the algorithm to the …

Persistent link: https://www.econbiz.de/10004992718

What determines entrepreneurial clusters?

Guiso, Luigi; Schivardi, Fabiano - Department of Economics, European University Institute - 2007

We contrast two potential explanations of the substantial di¤erences in entrepreneurial activity observed across geographical areas: entry costs and external effects. We extend the Lucas model of entrepreneurship to allow for heterogeneous entry costs and for externalities that shift the...

Persistent link: https://www.econbiz.de/10005816397

Industrial districts as organizational environments: resources, networks and structures

Toms, Steven; Popp, Andrew; Wilson, John - York Management School, University of York - 2006

The paper combines economic and sociological perspectives on organizations in order to gain a better understanding of the forces shaping the structures of industrial districts (IDs) and the organizations of which they are constituted. To effect the combination , the resource based view (RBV) and...

Persistent link: https://www.econbiz.de/10005817084

Clustering of Multilateral Environmental Agreements: Potentials and Limitations

Oberthür, Sebastian - In: International Environmental Agreements: Politics, Law … 2 (2002) 4, pp. 317-340

Persistent link: https://www.econbiz.de/10004965646

Clustering of Trading Activity in the DAX Index Options Market

Koch, Alexander K.; Lazarov, Zdravetz - University of Bonn, Germany - 2001

, options with strikes ending on 50 are less traded than options with strikes ending on 00. Clustering is higher when options … clustering, grid size, and the options' characteristics. To our knowledge this paper is the first to explore how the grid size of …

Persistent link: https://www.econbiz.de/10004968422

Spatial Determinants of Productivity: Analysis for the Regions of Great Britain

Rice, Patricia; Venables, Anthony J - C.E.P.R. Discussion Papers - 2004

This Paper uses NUTS3 sub-regional data for Great Britain to analyse the determinants of spatial variations in income and productivity. We decompose the spatial variation of earnings into a productivity effect and an occupational composition effect. For the former (but not the latter) we find a...

Persistent link: https://www.econbiz.de/10005792018