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| Dong, Diansheng; Kaiser, Harry M.; Myrland, Oystein. |
| In this study, we develop and estimate a censored LA/AIDS model using household-level purchase data. In addition to imposing non-negativitity constraints, we account for the endogeneity of unit value. We address the non-negativity issue using an Amemiya-Tobin approach, which imposes the adding-up condition on both observed and latent shares. We address the endogeneity of unit value by estimating share equations and unit value equations simultaneously. Given the need to evaluate high-order probability integrals, we use a simulated probability method in the model estimation. This model is applied to estimate and analyze a demand system featuring six fish and three meat commodities, using Norwegian household data. |
| Tipo: Technical Report |
Palavras-chave: Demand and Price Analysis; Research Methods/ Statistical Methods; C34; D12.. |
| Ano: 2003 |
URL: http://purl.umn.edu/122119 |
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| Gameiro, Augusto Hauber; Gameiro, Mariana Bombo Perozzi. |
| Despite the well-known idea that rice is a commodity and thus it is unlikely to be differentiated, there is a large number of rice products available in the retail market, with different classification, standards, packages, brands etc. It can be observed significant variation in their prices, considering the brands, manufacturers, stores and also when the same product is considered in a short interval of time. Before these findings, we asked what the effects of rice purchasing strategies are over consumers’ expenditures. This paper proposes a mathematical model to simulate the decision process of rice purchasing by consumers with different preferences, in front of products available in supermarkets in a city of Sao Paulo state and another in Rio Grande do... |
| Tipo: Journal Article |
Palavras-chave: Rice; Brand; Retail; Preference; Consumer.; Agribusiness; D12.. |
| Ano: 2008 |
URL: http://purl.umn.edu/61196 |
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