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| Registros recuperados: 15 | |
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| Bontemps, Christophe; Simioni, Michel; Surry, Yves R.. |
| Many empirical studies challenged the parametric approach to estimate nonlinear house price models and to use instead nonparametric or semiparametric model specifications. In the area of environmental analysis using house price models, Stock (1991) and McMillen and Thorsen (2000) applied semi-parametric models to estimate the impact of hazardous wastes on house prices. Furthermore, estimating nonparametricaly house price models is gaining now additional momentum because Ekeland et al. (2002) provided a theoretical justification to use such an empirical approach to estimate hedonic price models. The objective of this paper is to assess the impact of agricultural pollution in a livestock intensive region of France using alternative non-parametric and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2005 |
URL: http://purl.umn.edu/19547 |
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| Bontemps, Christophe; Bouamra-Mechemache, Zohra; Simioni, Michel. |
| Both industry and firm characteristics influence the survival of a firm in an industry over time. Aging, size, structure are factors often discussed in the literature, but public intervention effects - through public quality labeling for example - may also have an effect that is examined here. We use data on French firms producing cheese under public quality label or not over the period 1990-2006. We perform a nonparametric estimation using Kaplan-Meier estimators as well as proportional hazard rate models to assess the impact of such factors on firms survival. Our results confirm existing finding on firm survival determinants. We also shed light on the effect of public intervention into that industry. More precisely, our focus on public quality labeling... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/114263 |
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| Requillart, Vincent; Simioni, Michel; Varela Irimia, Xose Luis. |
| In this paper, we analyse the market power of the retail industry in the French tomato market. Following the methods developed in the New Empirical Industrial Organization, we develop a structural model of this industry. The analysis is based on detailed data on final consumption and prices at both shipper and consumer levels for two types of tomatoes in France. The structural model is composed of a system of demand equations, supply equations and pricing equations which include terms which capture the oligopoly and oligopsony power of the retail sector. We show that i) elasticity of demand varies during the year ii) the retail sector exercise only a ‘moderate’ market power iii) the exercise of market power decreases over time iv) If markets were... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Oligopoly; Oligopsony; Fresh products; Industrial Organization. |
| Ano: 2008 |
URL: http://purl.umn.edu/44279 |
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| Hassan, Daniel; Simioni, Michel. |
| The existence and the kind of asymmetry that characterize the relationships between shipping-point and retail prices are investigated for two major French fresh vegetables: tomatoes and chicory. Weekly data allow considering these relationships at very detailed levels such as region or supermarket chain. Moreover, the methodology proposes an implicit treatment of asymmetries in price transmission by using recently developed threshold cointegration methods. Our results do not give evidence to the widespread assertion that shipping-point price increases are completely and rapidly passed by middlemen on to consumers while there is a slower and less complete transmission of shipping-point price declines. As already emphasized in the literature, these results... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agribusiness; L66; L81; Q13. |
| Ano: 2002 |
URL: http://purl.umn.edu/24794 |
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| Registros recuperados: 15 | |
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