eprintid: 639 rev_number: 8 eprint_status: archive userid: 2 dir: disk0/00/00/06/39 datestamp: 2011-06-30 14:27:04 lastmod: 2011-08-31 14:40:38 status_changed: 2011-06-30 14:27:04 type: article metadata_visibility: show item_issues_count: 0 creators_name: Pammolli, Fabio creators_name: Buldyrev, Sergey V. creators_name: Growiec, Jakub creators_name: Riccaboni, Massimo creators_name: Stanley, H. Eugene creators_id: f.pammolli@imtlucca.it creators_id: creators_id: creators_id: massimo.riccaboni@imtlucca.it creators_id: title: The Growth of Business Firms: Facts and Theory ispublished: pub divisions: EIC full_text_status: none abstract: We refer to the framework developed by Ijiri and Simon (1977) and to the notion of independent submarkets (Sutton 1998) to provide a simple candidate explanation for the shape of the firm growth distribution based on a model of proportional growth at the level of both the introduction of new products by firms and their size dynamics. We exploit the features of a unique longitudinal data set which covers the entire distribution of products and firms in the worldwide pharmaceutical industry to test the model at different levels of aggregation as well as at different time lags. Econometric investigations show that the model's predictions are in good agreement with empirical evidence. (JEL: L11, L65) date: 2007 date_type: published publication: Journal of the European Economic Association volume: 5 number: 2-3 publisher: MIT Press pagerange: 574-584 id_number: 10.1162/jeea.2007.5.2-3.574 refereed: TRUE issn: 1542-4766 official_url: http://dx.doi.org/10.1162/jeea.2007.5.2-3.574 related_url_url: http://www.jstor.org/stable/40005060 citation: Pammolli, Fabio and Buldyrev, Sergey V. and Growiec, Jakub and Riccaboni, Massimo and Stanley, H. Eugene The Growth of Business Firms: Facts and Theory. Journal of the European Economic Association, 5 (2-3). pp. 574-584. ISSN 1542-4766 (2007)