Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 188.
  1. Library Resource
    Documents et rapports de conférence
    août, 2010

    As part of international climate change policy, voluntary opt-in programs to reduce emissions in unregulated sectors or countries have spurred considerable discussion. Since any regulator will make errors in predicting baselines, adverse selection will reduce efficiency since participants will self-select into the program. In contrast, pure subsidies lead to full participation but require large financial transfers; this is a particular challenge across countries. A global social planner facing costless transfers would choose such a subsidy to maximize efficiency.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2010
    Europe

    We present here preliminary results of an integrated modelling approach combining a crop model (STICS) and an economic model (AROPAj) of European agricultural supply. This modelling framework is designed to perform quantitative analysis, regarding climate change impacts on agriculture and more generally the interactions between soils, land use, agriculture and climate integrating physical and economical elements (data, process, models). It explicitly integrates an agricultural diversity dimension with regards to economic set of choices and soil climate spatial variability.

  3. Library Resource
    Documents et rapports de conférence
    décembre, 2010
    Géorgie

    Although mixed logit models are common in stated preference applications, resulting welfare estimates can be sensitive to minor changes in specification. This can be of critical relevance for policy and welfare analysis, particularly if policymakers are unaware of practical implications. Drawing from an application to agricultural conservation in Georgia, this paper quantifies the sensitivity of welfare estimates to common variations in mixed logit specification and assesses practical implications for policy guidance.

  4. Library Resource
    Documents et rapports de conférence
    décembre, 2010
    Chine

    This paper examines and predicts the effects of climate change and climate extremeson China’s land use conversion and soil carbon sequestration under two alternativeclimate change scenarios. It intends to investigate the following three questions. 1)How did climate factors affect land-use conversion in China from 1988 to 2000 andwhat was the relative importance of these factors? 2) How would the predicted futureclimate change pattern affect land-use choice under alternative climate changescenarios?

  5. Library Resource
    Documents et rapports de conférence
    décembre, 2010

    Recent studies indicate that the effect of government subsidies on rentalrates for farmland may be lower than once thought and lower than predictions from theory.However, there are still a number of unresolved issues in estimating subsidy incidence econometrically. We identify three such issues, inertia, expectations, and tenancy arrangements,and employ panel data from the state of Kansas to resolve them. Our econometric modelsuggests that subsidy incidence on rental rates is low in the short run, but consistent withpredictions from theory in the long run.

  6. Library Resource
    Documents et rapports de conférence
    janvier, 2010

    Farmland and capital are an important and rapidly expanding component of the agriculturaleconomy, and empirical evidence suggests that these assets are quasi-fixed in that adjustment costs are incurred when holdings are altered. Increased interest in the rate of return for investing in farmland suggests that an important consideration is the effect of adjustment costs on this return.

  7. Library Resource
    Documents et rapports de conférence
    mai, 2010

    This study examines the financial performance and stress experienced by beginning and retired farms in the U.S. Using USDA’s ARMS data, probit models are estimated to study the personal and farm characteristics that affect whether or not the financial ratios fall into critical zones. The results show that older farmers and larger farms are less likely to experience financial stress while hobby farms and livestock farms are more likely toexperience financial stress. The results for beginning and retired farmers indicate fewersignificant effects.

  8. Library Resource
    Documents et rapports de conférence
    décembre, 2010

    Biofuels have been promoted to achieve energy security and as a solution to mitigatingclimate change. This research presents a framework to examine the extent to which biofuelmandates and subsidies reduce gasoline consumption and their implications for the food and fuelprices.

  9. Library Resource
    Documents et rapports de conférence
    décembre, 2010

    In order to measure agriculture sustainability, the efficient use of inputs becomes a crucial issue. In this perspective, theanalysts concentrate their attention on the total factor productivity index (TFP). In this view, Lynam and Herdt (1989) proposed theTFP as a suitable assessment of the sustainability of single crops, of cropping systems or of farming systems. Even if the TFP doesnot take into account the non-market output (social and environmental aspects), it is possible to argue that a negative trend of TFPrepresents a resources’ degradation if related to the generated outputs.

  10. Library Resource
    Documents et rapports de conférence
    mai, 2010
    Japon

    This paper examines the impact of farmland readjustment projects on farmland use and structural adjustment in Niigata, Japan. We use census data of rural communities for 1990 and 2000 to conduct pooled regression, first-difference, difference-in-differences, and propensity score matching estimations. We find positive impact of farmland readjustment projects in alleviating farmland abandonment and in facilitating outsourcing of agricultural works and farmland rental.

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