This paper presents a validation experiment of a global CGE trade model widely used for analysis of trade liberalization. We focus on the ability of the model to reproduce price volatility in wheat markets. The literature on model validation is reviewed with an eye towards designing an...

This paper incorporates commodity stockholding into a short run, stochastic global general equilibrium model. A mix of econometric and calibration techniques are used to reconcile model outcomes with historical stockholding and price behavior. The resulting framework is useful for analyzing...

Computable General Equilibrium (CGE) models are commonly used for global agricultural market analysis. However, concerns are sometimes raised about the quality of their output since key parameters may not be econometrically estimated and little emphasis is generally given to model assessment....

"Rich countries' agricultural trade policies are the battleground on which the future of the WTO's troubled Doha Round will be determined. Subject to widespread criticism, they nonetheless appear to be almost immune to serious reform, and one of their most common defences is that they protect...

Recent analysis has highlighted agricultural land conversion as a significant debit in the greenhouse gas accounting of ethanol as an alternative fuel. A controversial element of this debate is the role of crop yield growth as a means of avoiding cropland conversion in the face of biofuels...

We examine the determinants of own-price output supply response in policy models, focusing primarily on the OECD-PEM equilibrium displacement model. Reviewing expert assessments and econometric literature estimates we find that there is evidence to both support and challenge the relatively high...

Paper removed by authors for revision - 3/13/08.

A global CGE model featuring agricultural sector detail is used to assess WTO agricultural reform. Parametric uncertainty is considered with model results evaluated based on confidence intervals. We find that continued shift in domestic support to green box payments maintains farmer welfare...

An AGE model with detailed farm supply and substitution relationships is used to analyze impacts of OECD domestic support reform on developing economy welfare. Stylized simulations indicate reforms best suited for reducing trade distortions with least impact on farm incomes. Comprehensive...