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| Registros recuperados: 10 | |
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| Dono, Gabriele; Severini, Simone. |
| This paper evaluates the possible consequences of decreasing in the amount of water provided by the irrigation board to the farms, and increasing in the unitary water charges that the irrigation board applies to the farms. The study has been conducted in a Mediterranean region of southern Italy where farmers can use water delivered by an irrigation board and by privately owned wells. The results of the analysis, performed by means of a mathematical programming model, show that in both cases farmers substitute the water supplied by the irrigation board with that extracted from farm wells. This generates an over-extraction of resources from the aquifer leading to likely negative environmental consequences. This also endangers the economic sustainability of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Water Framework Directive; Farmers behaviour; Mathematical programming; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/43856 |
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| Severini, Simone; Cortignani, Raffaele. |
| Farmers face increasing income uncertainty and the debate is growing on the role of insurance schemes and of public support in this field. This paper applies a PMP modelling approach that takes into explicit consideration risk aversion behaviour to test its applicability to evaluating the potential impact of insurance schemes. This is done by introducing a revenue insurance scheme into a model developed on a small group of crop farms in Italy. The paper represents a preliminary assessment of the soundness of the proposed approach. It identifies some limitations that should be overcome to improve the proposed approach. Despite these limitations, it seems a useful tool to investigate the impact of insurance schemes and policy relevant parameters such as... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Insurance schemes; PMP; Farmers’ behaviour; Risk aversion; Agricultural and Food Policy; Q12; C61; Q18. |
| Ano: 2011 |
URL: http://purl.umn.edu/99431 |
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| Severini, Simone; Tantari, A.. |
| Farm direct payments (DPs) have been the main instrument of the Common Agricultural Policy (CAP) to support farm income in the EU. After the decoupling of DPs from production levels, the distributional objectives are among the major justifications of DPs. This paper addresses their role in the distribution of farm inc come among farmers. The analysis accounts direct payments granted in the context of the market and income supp port policies and of rural development policies. Using the Gini coefficient and its d disaggregation, this study investigates the impact of b both kinds of payments on farm income inequality among a large sample of farms in Italy. The analysis is developed a at a national level but also considering the three main regions of Italy and... |
| Tipo: Presentation |
Palavras-chave: Agricultural and Food Policy. |
| Ano: 2012 |
URL: http://purl.umn.edu/124099 |
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| Severini, Simone; Cortignani, Raffaele. |
| There is a growing policy pressure to reduce water use in agriculture when this generates sufficiently large environmental benefits and increases the well-being of other water users. Several analysis investigate farmers’ response to water policy by means of mathematical programming models including Positive Mathematical Programming (PMP). The originals PMP methods refer only to activities observed in the reference period. However, under the pressure of new water policies, farmers can adjust not only their cropping patterns but also the irrigation techniques they use. In particular, they could introduce water deficit irrigation crop techniques that were not profitable in past conditions. This paper proposes an extension of the Röhm and Dabbert approach... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Positive mathematical programming; Water policies; Deficit irrigation; Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/44010 |
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| Dono, Gabriele; Cortignani, Raffaele; Doro, Luca; Ledda, Luigi; Roggero, PierPaolo; Giraldo, Luca; Severini, Simone. |
| In the agricultural sector, climate change (CC) affects multiple weather variables at different stages of crop cycles. CC may influence the mean level or affect the distribution of events (e.g., rainfall, temperature). This work evaluates the economic impact of CC-related changes in multiple climatic components, and the resulting uncertainty. For this purpose, a three-stage discrete stochastic programming model is used to represents farm sector of an irrigated area of Italy and to examine the influence of CC on rainfall and on maximum temperature. These variables affect the availability of water for agriculture and the water requirements of irrigated crops. The states of nature, and their change, are defined more broadly than in previous analyses; this... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Discrete stochastic programming model; Climate change; Water availability; Irrigation requirements; Farm Management; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/114436 |
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| Registros recuperados: 10 | |
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