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Daidone, Silvio and D'Amico, Francesco (2009) Technical efficiency, specialization and ownership form: evidences from a pooling of Italian hospitals. Journal of Productivity Analysis, 32 (3). pp. 203-216. ISSN 0895-562X
Mencia, Javier, Leon, Angel and Sentana, Enrique (2007) Parametric properties of semi-nonparametric distributions, with applications to option valuation. Financial Markets Group Discussion Papers (597). Financial Markets Group, The London School of Economics and Political Science, London, UK.
Niguez, Trino-Manuel and Perote, Javier (2004) Forecasting the density of asset returns. EM (479). Suntory and Toyota International Centres for Economics and Related Disciplines, London, UK.
Soo, Kwok Tong (2004) Zipf's law for cities: a cross country investigation. CEPDP (641). Centre for Economic Performance, London School of Economics and Political Science, London, UK. ISBN 0753017679