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| Richards, Timothy J.. |
| Typically, marketers define market segments by their demographic characteristics, assuming that these segments represent consumers with relatively homogeneous buying patterns. A more managerially useful definition, however, groups consumers of similar behavior directly and then seeks to find demographic commonalities among them. This study uses a latent class analysis technique to segment consumers based on their responsiveness to a set of marketing variables, finding that a multiple-segment model provides a better fit to the data, and that these segments differ significantly in their responsiveness. By targeting marketing activities to their most responsive segments, the efficiency of commodity promotion can be dramatically improved. |
| Tipo: Journal Article |
Palavras-chave: Advertising; Apple; Demand; Latent class analysis; Multinomial logit; Segmentation; Marketing. |
| Ano: 2000 |
URL: http://purl.umn.edu/15307 |
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| Langhi Junior,Dante M.; Bordin,José O.; Castelo,Adauto; Walter,Stephen D.; Moraes-Souza,Hélio; Stumpf,Robert J.. |
| The main strategy to prevent transfusion-associated Chagas' disease is the identification of T. Cruzi-infected blood donors by serological screening tests, however there is no perfect serological gold standard. We evaluated an enzyme immunoassay (EIA), an indirect hemaglutination (IHA), and an indirect immunofluorescence (IIF) test for detecting T. Cruzi antibodies in Brazilian blood donors. The results were submitted to latent class analysis, and a radioimmunopreciptation (RIPA) test was performed on repeatedly positive samples. Among 1951 donors, 11 (0.56%) were positive by EIA, 6 (0.31%) by IHA and 16 (0.82%) by IIF. Six samples were positive with all tests, while 4 reacted with EIA and IIF. The RIPA was positive in 6 (75.0%), 7 (66.6%), and 4 (54.0%)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chaga's disease; Blood donors; Diagnostic test; Latent class analysis. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000400005 |
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