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Autoren: 
Zimmer, David M.
Trivedi, Pravin K.
Li, Tong
Cameron, A. Colin
Datum: 
2004
Reihe/Nr.: 
Working Paper 04-3
Zusammenfassung: 
This paper makes three contributions. First, it uses copula functions to obtain a flexible bivariate parametric model for nonnegative integer-valued data (counts). Second, it recovers the distribution of the difference in the two counts from a specifed bivariate count distribution. Third, the methods are applied to counts that are measured with error. Specifically we model the determinants of the difference between the self-reported number of doctor visits (measured with error) and true number of doctor visits (also available in the data used).
Dokumentart: 
Working Paper

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