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Now showing items 1 - 14 of 14

  • Economic and social impact of grape growing in Northeastern Brazil

    Arata, Linda   Hauschild, Sofia   Sckokai, Paolo  

    The Northeastern viticultural industry has become a model for the whole Brazil and has been identified as a grape production district. Given the importance of agriculture in the economy of the region our study aims at analysing whether the grape producing activity affects some socio-economic indicators, namely the Theil index, the Human Development Index (HDI) and the unemployment rate over the period 2000-2010. The study is focused on the Northeastern states of Bahia and Pernambuco, two of the poorest and with the highest income inequality among Brazilian States and combines the Difference-in-Differences with the Propensity Score matching method at the municipality level. Results seem to indicate that grape growing plays an important role to guarantee a fairer income distribution. Indeed, the municipalities that grow grape experience a decrease in the level of Theil index by 11.7% compared to the level they would have if they had not participate in grape production. No effect has been found on the HDI and on the unemployment rate. Results are robust to the potential presence of an hidden bias according to the Rosenbaum sensitivity analysis.
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  • Incorporating risk in a positive mathematical programming framework:a dual approach

    Arata, Linda   Donati, Michele   Sckokai, Paolo   Arfini, Filippo  

    In this study we develop a new methodological proposal to incorporate risk into a farm-level positive mathematical programming (PMP) model. We estimate simultaneously the farm nonlinear cost function and a farmer-specific coefficient of absolute risk aversion as well as the resource shadow prices. The model is applied to a sample of representative arable crop farms from the Emilia-Romagna region in Italy. The estimation results confirm the calibration ability of the model and reveal the values of the individual risk aversion coefficients. We use the model to simulate different scenarios of crop price volatility, in order to explore the potential risk management role of an agri-environmental scheme.
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  • Food Retail Liberalization, Food Retail Structure and Food Prices: The Italian Case

    Castellari, Elena   Bonanno, Alessandro   Sckokai, Paolo  

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  • Panel Data Estimation Techniques and Farm-level Data Models

    Platoni, Silvia   Sckokai, Paolo   Moro, Daniele  

    Econometric models estimating parameters for agricultural policy analysis increasingly rely on unbalanced panels of farm-level data. Since such models have often been estimated through simplified approaches, in this paper we show that adopting more sophisticated panel data techniques may be very important for obtaining more reliable estimates of policy parameters. We also extend the two-stage procedure proposed by Shonkwiler and Yen (1999) and Tauchmann (2005) for the analysis of censored data to account for heteroskedasticity and correlation of the error terms of the first-stage probit models.
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  • Agricultural policy modelling under imperfect competition

    Soregaroli, Claudio   Sckokai, Paolo   Moro, Daniele  

    This study evaluates the role of imperfect competition in determining the agri-food policies impact assessment outcomes. In most impact studies, the supply chain between agricultural production and final consumption is modelled in a perfectly competitive framework. However, there is a growing attention of stakeholders for the presence of imperfectly competitive markets, with the retail sector often being under investigation. This issue is empirically analysed with an application to the dairy industry. First, the degree of market power is estimated using a multi-output demand and price transmission equation system. Then, this model is used for policy simulation with the perfect competition outcome taken as a benchmark to evaluate the impact of imperfect competition. Results show a significant degree of market power in the dairy industry with implications on the projected policy scenarios. Moreover, the imperfect competition model alters the price transmission mechanisms, generating more flexible price trends. (C) 2010 Society for Policy Modeling. Published by Elsevier Inc. All rights reserved.
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  • Economic and environmental impacts of milk quota reform in Europe

    Kempen, Markus   Witzke, Peter   Perez Dominguez, Ignacio   Jansson, Torbjorn   Sckokai, Paolo  

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  • Five-a-Day,Fruit and Vegetables Portions,and the Food Environment:The Italian Case

    Bonanno, Alessandro   Bimbo, Francesco   Castellari, Elena   Sckokai, Paolo  

    Italy has one of the largest per-capita consumption rates of fruits and vegetables (FV) among European Union countries. However, the number of adult Italians consuming the recommended daily amounts of FV is declining, especially in regions where the food retail industry's expansion is lagging. In this article we investigate the effect of the food environment on the likelihood of adult Italians consuming five or more daily portions of FV, and on the probability of consuming more portions of FV. We combine individual-level data on adult Italians' lifestyle with regional food retail structure measures. To correct for the endogeneity of the food environment, we use an identification strategy based on aggregate drivers of food stores' location, and on the regional political climate affecting retail liberalization reforms. The results show that increased access affects positively the probability of consuming the daily-recommended amounts of FV, as well as the probability of consuming more portions of FV. However, the role of the food environment is less marked for individuals declaring it to experience a hardship to access supermarkets.
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  • A worldwide analysis of trend in crop yields and yield variability: Evidence from FAO data

    Arata, Linda   Fabrizi, Enrico   Sckokai, Paolo  

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  • Estimating Market Power by Retailers in a Dynamic Framework: the Italian PDO Cheese Market

    Sckokai, Paolo   Soregaroli, Claudio   Moro, Daniele  

    In this article, we evaluate the role of market power by retailers within the supply chain of Parmigiano Reggiano (PR) and Grana Padano (GP), the two most famous Italian quality cheeses. Market power is analysed in the context of a dynamic imperfect competition model of the supply chain, in which retailers are allowed to exert market power both downstream and upstream. We jointly estimate market-power parameters together with supply and demand elasticities, by means of a structural system of demand, supply and price-transmission equations, estimated using the generalised method of moments. We find evidence of downstream market power by retailers (toward final consumers) for PR and GP, but no evidence of upstream market power (toward processors/ripeners). These results may be explained by the structure of the supply chain and by the peculiar characteristics of the two cheeses.
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  • Modelling the impact of the CAP Single Farm Payment on farm investment and output

    Sckokai, Paolo   Moro, Daniele  

    This paper analyses the impact of the Common Agricultural Policy arable crop regime on farm investment and output, introducing explicitly farmers' risk attitudes into a dynamic dual model of farm decision-making. Estimation and simulation results are based on a Farm Accounting Data Network sample of Italian arable farms. The main finding is that an increase in intervention price would significantly affect farm investment, mainly through reduced price volatility, while policy changes not affecting price uncertainty, like an increase in the Single Farm Payment, would have a much smaller impact.
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  • The Degree of Decoupling of Area Payments for Arable Crops in the European Union

    Sckokai, Paolo   Anton, Jesus  

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  • Empirical issues in the computation of Stone-Lewbel price indexes in censored micro-level demand systems

    Moro, Daniele   Castellari, Elena   Sckokai, Paolo  

    In this article, we propose an empirical method for the computation of the Stone-Lewbel (SL) price index for product aggregates, when censored samples with zero expenditures are available from household budget surveys. The proposed technique is based on a regression imputation method that takes into account the price dynamics, therefore, allowing to disentangle the role of demographics from the role of prices in computing the SL index. Our simulations seem to indicate that our method is a valuable alternative.
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  • Bridging Gaps in the Agricultural Phosphorus Cycle from an Animal Husbandry PerspectiveThe Case of Pigs and Poultry

    Oster, Michael   Reyer, Henry   Ball, Elizabeth   Fornara, Dario   McKillen, John   Sorensen, Kristina Ulrich   Poulsen, Hanne Damgaard   Andersson, Kim   Ddiba, Daniel   Rosemarin, Arno   Arata, Linda   Sckokai, Paolo   Magowan, Elizabeth   Wimmers, Klaus  

    Since phosphorus (P) is an essential element for life, its usage and application across agricultural production systems requires great attention. Monogastric species such as pigs and poultry can significantly contribute to global food security but these animals remain highly dependent on the supply of mineral inorganic P in their feeds. Pig and poultry, which represent 70% of the global meat production, are also major P excretors and thus represent important sources of environmental P inputs. Balancing the P cycle within farming systems is crucial to achieve P sustainable and resilient livestock production. Therefore, the interconnection of animal feed, livestock farming, manure, and soil/aquatic ecosystems requires multidisciplinary approaches to improve P management. With regard to a sustainable agricultural P cycle, this study addresses aspects of feeding strategies and animal physiology (e.g., phase feeding, P conditioning, liquid feeding, phytase supplementation, genetics), soil agroecosystems (e.g., P cycling, P losses, P gains), reuse and recycling (e.g., manure, slaughter waste), measures of farmers' economic performance (e.g., bio-economic models), and P governance/policy instruments (e.g., P quota, P tax). To reconcile the economic and ecological sustainability of animal husbandry, the strategic objective of future research will be to provide solutions for a sufficient supply of high-quality animal products from resource-efficient and economically competitive agro-systems which are valued by society and preserve soil and aquatic ecosystems.
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  • The degree of decoupling of area payments for arable crops in the European Union

    Sckokai, Paolo   Anton, Jesus  

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