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| Registros recuperados: 139 | |
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| Guillén Alvarado, Mauricio Arturo. |
| En este trabajo se planteo medir el impacto sobre el precio de las importaciones de carne de pavo el efecto en el consumo y su afectación a la industria nacional productora de pavo, para ello se estiman las elasticidades de la demanda marshallianas para diferentes productos como: carne de pavo, bovino, porcino, pollo y huevo. Se estimó un Sistema de Demanda Casi Ideal (AIDS), con ecuaciones aparentemente no relacionadas (SUR, por sus siglas en ingles), aplicando el índice de precios Stone. De acuerdo con los resultados de las elasticidades precio propias marshallianas, los 5 productos resultaron con elasticidad menores a uno, es decir inelásticos. En el caso de las elasticidades precio cruzadas, las combinaciones entre los productos cárnicos resultaron... |
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Palavras-chave: Elasticidades marshallianas; Elasticidades gasto; Modelo AIDS; Método SUR; Marshallian elasticity's; Expense elasticity's; AIDS; Method SUR model; Economía; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1750 |
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| Barbosa,A. N.; Souza,L. R.. |
| From the beginning of the AIDS epidemic, pneumocystis pneumonia (PCP) has been distinguished as one of the most frequent opportunistic diseases with high morbid-mortality. As from 1996, the advent of the highly active antiretroviral therapy (HAART) has changed the characteristics of such epidemic by reducing its related diseases and, as a result, AIDS-related mortality. With the purpose to estimate PCP occurrence and HAART interference, 376 HIV-infected or AIDS patients were studied from January 1992 to December 2002. Among them, 58 (15.5%) PCP cases were found. There was a higher occurrence of PCP in the group of patients in which HAART was not used, with 40 (69.0%) of the episodes. As regards the studied period, a tendency to a linear reduction in annual... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AIDS; Pneumocystis pneumonia; Antiretroviral treatment; T CD4+ lymphocytes. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100012 |
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| Meira,DA; Almeida,RAMB; Barbosa,AN; de Souza,LR; Olivo,TET; Henriques,RMS; Golim,MA; Araújo Jr,JP; Nagoshi,LR; Orikaza,CM; Calvi,SA. |
| A cross-sectional study was performed on HIV-1 infected individuals with or without antiretroviral treatment (ARV) in the AIDS Day Hospital, Botucatu Medical School, UNESP. Between August 2004 and October 2005, 73 HIV-1 infected individuals were divided into three groups: infected individuals with or without AIDS who had never received ARV (G1 = 15); patients on HAART that had had plasma HIV-1 RNA viral load (VL) equal to or greater than 50 copies/mL (G2 = 27); and patients on HAART with undetectable VL for at least the past six months (G3 = 31). There was also an additional group that comprised blood donors without any sign of the disease and with negative HIV serum tests (G4 = 20), which was the control group. Serum cytokine levels (values in pg/mL) were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RT-PCR; ELISA; Cytokines; HIV; AIDS; HAART; Apoptosis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400011 |
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| Meyer, Stefan; Yu, Xiaohua; Abler, David G.. |
| Using Monte-Carlo simulation, , we compare the most popular demand systems including the LES, AIDS, BTL, QES, QUAIDS and AIDADS, and find that different models actually have different advantages in estimating different elasticities. Specifically, QES, AIDS and AIDADS models are the best in income, own-price and cross-price elasticities, respectively. Overall, AIDADS model has the best performance. The results indicate that the rank three models are not necessary always better than the rank two models. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Comparison; Demand Systems; Monte Carlo; AIDS; Consumer/Household Economics; Demand and Price Analysis; Research Methods/ Statistical Methods. |
| Ano: 2011 |
URL: http://purl.umn.edu/103736 |
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| Schultz, T. Paul. |
| Wage-differentials by education of men and women are examined from African household surveys to suggest private wage returns to schooling. It is commonly asserted that returns are highest at primary school levels and decrease at secondary and postsecondary levels, whereas private returns in six African countries are today highest at the secondary and post secondary levels, and rates are similar for women as for men. The large public subsidies for postsecondary education in Africa, therefore, are not needed to motivate students to enroll, and those who have in the past enrolled in these levels of education are disproportionately from the better-educated families. Higher education in Africa could be more efficient and more equitably distributed if the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Africa; Wage returns to schooling; Inequality; HIV; AIDS; Labor and Human Capital; 015; 055; J31; J24. |
| Ano: 2003 |
URL: http://purl.umn.edu/28481 |
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| Wang, Shinn-Shyr; Stiegert, Kyle W.; Dhar, Tirtha Pratim. |
| This paper investigates a comprehensive assessment of firm strategic behavior under financial market uncertainty. A general theoretical model of market value maximization (MVM) is constructed using a traditional capital asset pricing format. The model built on the nonlinear Almost Ideal Demand Systems (AIDS) and structural first-order conditions is developed. By full information maximum likelihood (FIML) estimation, the model evaluates pricing strategies in the U.S. margarine and butter retail markets using 4-week interval scanner data from 1998 to 2002. The model of profit maximization is rejected in favor of the MVM structure, and it indicates that financial market uncertainty plays an important role in the pricing behavior in this industry. We estimate... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Market Value Maximization; AIDS; FIML; Model Selection; Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/19198 |
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| Alviola, Pedro A., IV; Capps, Oral, Jr.; Wu, Ximing. |
| A censored Almost Ideal Demand System (AIDS) and a Quadratic Almost Ideal Demand System (QUAIDS) were estimated in modeling non-alcoholic beverages. Five estimation techniques were used, including the conventional Iterated Seemingly Unrelated Regression (ITSUR), two-stage methods such as the Heien and Wessells (1990) and the Shonkwiler and Yen (1999) approaches, the generalized maximum entropy method and the Amemiya-Tobin framework of Dong, Gould and Kaiser (2004). Our results based on various specifications and estimation techniques are quantitatively similar and indicate that price elasticity estimates have a greater variability in more highly censored non-alcoholic beverage items such as tea, coffee and bottled water as opposed to less censored... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Censored demand systems; AIDS; QUAIDS; Two-Step Methods; Generalized Maximum Entropy; Amemiya-Tobin Framework; Non-Alcoholic Beverages; Agribusiness; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; C34; D12. |
| Ano: 2009 |
URL: http://purl.umn.edu/60462 |
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| Seale, James L., Jr.; Merchant, Mary. |
| This research estimates price and expenditure elasticities of U.S. red wine imports from five countries--Italy, France, Spain, Australia, and Chile--which are compared to elasticities of domestically produced red wine using the first-difference version of the almost ideal demand system (AIDS). Expenditure elasticity results indicate that if U.S. total expenditures on red wine increase, domestic producers would gain most. Empirical results for conditional own-price elasticities of demand indicate that U.S. and Chilean red wines are elastic while U.S. demand for red wines from other countries are highly inelastic. Due to the magnitude of consumption of U.S. domestic red wines relative to imports, an increase in the price of U.S. wine results in a decline in... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Imports; Red wines; Almost Ideal Demand System; AIDS; Demand and Price Analysis; International Relations/Trade. |
| Ano: 2002 |
URL: http://purl.umn.edu/15637 |
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| Registros recuperados: 139 | |
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