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| Registros recuperados: 16 | |
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| Salamon, Petra; Chantreuil, Frederic; Donnellan, Trevor; Erjavec, Emil; Esposti, Roberto; Hanrahan, Kevin F.; van Leeuwen, Myrna; Salputra, Guna. |
| The AGMEMOD Partnership seeks to capture the inherent heterogeneity of the agricultural systems existing by combining individual country models of 27 EU Member States and several accession countries into one single model while still maintaining analytical consistency. Although this approach facilitates the comparison of the impact of a policy across different Member States, it generates challenges in practical implementation, ranging from high communication and administration requirements to aggregation and consistency issues. This contribution provides insights into the different challenges posed to the scientists and discusses the key issues for maintenance and further development of such a complex system. Specific attention is paid to technical devices... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Linking Models; Policy Analysis; Partial Equilibrium Modelling; Common Agricultural Policy (CAP); Agricultural and Food Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/43539 |
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| Esposti, Roberto; Pierani, Pierpaolo. |
| Public R&D stock is considered as quasi-fixed input in a variable cost function. Its shadow price allows to measure the long run optimal level thus explicitly assessing the hypothesis of under (over) investment. Two alternative R&D prices are defined depending on whether the social or private (farmers) view prevails. The results under these alternatives provide evidence on the hypothesis that free-riding on public R&D explain overinvestment. The application to the Italian agriculture (1960-1995) suggests overinvestment in public research since the late seventies with a significant difference between the social and private optimal R&D, the former being much closer to the observed level. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2003 |
URL: http://purl.umn.edu/25876 |
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| Salamon, Petra; Chantreuil, Frederic; Donnellan, Trevor; Erjavec, Emil; Esposti, Roberto; Hanrahan, Kevin F.; van Leeuwen, Myrna; Bouma, Foppe; Dol, Wietse; Salputra, Guna. |
| The AGMEMOD Partnership seeks to capture the inherent existing heterogeneity of agricultural systems by linking together individual EU Member State models, an aggregated EU model and several accession countries into one single model, while still maintaining analytical consistency. Although this approach facilitates the comparison of the impact of a policy change across different Member States, it generates challenges in practical implementation, ranging from significant communication and administration requirements, to aggregation and consistency issues. This contribution provides insights into the different challenges posed to the scientists and discusses the key issues for maintenance and further development of such a complex system. Specific attention... |
| Tipo: Journal Article |
Palavras-chave: Linking models; Policy analysis; Partial equilibrium modelling; Common Agricultural Policy (CAP); Agricultural and Food Policy; Research Methods/ Statistical Methods. |
| Ano: 2008 |
URL: http://purl.umn.edu/97709 |
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| Esposti, Roberto. |
| The paper analyses agricultural TFP growth across Italian regions during the 1952-2002 period, and aims at identifying those factors that favour or hinder regional agricultural TFP growth convergence. Of major relevance is whether regions, despite their inescapable heterogeneity, tend to share common technological improvements, that is, to move along the same productivity growth rate. TFP growth decomposition ultimately allows attributing observed productivity performance to convergence and divergence forces. Appropriate testing and estimation procedures are adopted to take into account panel unit-root issues and cross-sectional dependence. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: TFP growth; Convergence; Panel Data; Productivity Analysis. |
| Ano: 2008 |
URL: http://purl.umn.edu/43955 |
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| Listorti, Giulia; Esposti, Roberto. |
| This paper aims at making the world price endogenous within the AGMEMOD modelling approach. This approach constructs country-level commodity market models where supply and demand sides are equalized on the basis of the observed domestic prices. These prices are endogenous as they depend (price transmission equation) on a EU key-price, which is, in turn, endogenously determined by the world price (price formation equation). The world prices, however, are assumed to be exogenous. To make the world price endogenous, we propose a system of equations where the EU key-price and the world price are simultaneously determined. This system of equations, written in a dynamic and error-correction form (VECM), substitutes the usual price-formation equation, while price... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Price Formation and Transmission; Commodity Market Models; VECM; Demand and Price Analysis; Research Methods/ Statistical Methods; Q110; Q170. |
| Ano: 2008 |
URL: http://purl.umn.edu/6659 |
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| Esposti, Roberto; Listorti, Giulia. |
| This paper analyses the horizontal transmission of cereal price shocks both across different market places and across different commodities. The analysis is carried out using Italian and international weekly spot (cash) price data and concentrating the attention on years 2006-2010, a period of generalized exceptional exuberance and consequent rapid drop of agricultural prices. The work aims at investigating how price transmission may be affected during price bubbles. The properties of price time series are firstly explored to assess which data generation process may have eventually produced the observed patterns. Secondly, the interdependence across prices is specified and estimated adopting appropriate cointegration techniques. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Price Transmission; Price Bubbles; Time Series Properties; Cointegration; Demand and Price Analysis; Q110; C320. |
| Ano: 2011 |
URL: http://purl.umn.edu/114338 |
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| Esposti, Roberto; Lobianco, Antonello. |
| This paper aims to summarize some of the major results emerging from simulating the impact of the CAP reform (the so-called Fischler Reform or Luxembourg Agreement, LA) within the AG-MEMOD model of the agri-food sector in Italy. The paper shows how the model generates impacts when alternative policy scenarios (Agenda 2000 vs. LA) are specified. As major evidence of this impact in the Italian case, the crop sector is dealt with in detail. In particular, the case of supplementary payments for durum wheat clarifies how the reform may specifically affect Mediterranean agriculture and how alternative specifications of the regime switch in durum wheat support relevantly influence the impact. |
| Tipo: Journal Article |
Palavras-chave: Common Agricultural Policy; Italian Agriculture; Commodity Market Models; Crop Production/Industries; Q110; Q180. |
| Ano: 2005 |
URL: http://purl.umn.edu/44091 |
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| Materia, Valentina Cristiana; Esposti, Roberto. |
| This paper analyses, through a Random Utility Model (RUM), how a public institution selects among competitive agricultural R&D projects on the basis of observable distinctive features. In particular, we aim at verifying if, which and how other criteria, beyond the pure scientific value, are decisive for selection. From such information, like cost, duration, etc., the institution must infer about the unobservable actual ability, effort and reliability of the scientists themselves. Such analytical framework is empirically applied to a real case, the agricultural R&D activity funded by the Emilia-Romagna Region (Italy) between 2001 and 2006. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Public Agricultural R&D Funding; Random Utility Model; Logit Model; Agribusiness; Community/Rural/Urban Development; Public Economics. |
| Ano: 2009 |
URL: http://purl.umn.edu/57642 |
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| Esposti, Roberto; Pierani, Pierpaolo. |
| The public R&D capital stock is introduced as a quasi-fixed input in a variable cost function. The relative shadow price allows the correct measurement of the equilibrium levels of quasi-fixed inputs thus explicitly assessing the hypothesis of public R&D under (over) investment. By introducing an appropriate R&D price in the long-run equilibrium, the model can also provide empirical evidence on the rationale driving public R&D investment and on the hypothesis that free-riding on public R&D can explain overinvestment. Moreover, the model allows a formal testing of the induced innovation hypothesis and a more accurate calculation of both internal rate of return to R&D and residual exogenous productivity growth. The empirical... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Public Economics. |
| Ano: 2002 |
URL: http://purl.umn.edu/24974 |
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| Registros recuperados: 16 | |
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