Potentials of a harmonised database for agricultural market modelling

Abstract

In a study carried out by the Joint Research Centre, Institute for Prospective Technological Studies (JRC-IPTS), the potentials of harmonising and improving databases that are currently used for agricultural market modelling have been analysed. The study supports DG AGRI in improving quality and timely availability of data for market modelling and ensuring that data from different sources are consistent. This study aims to provide a structure for a consolidated database for policy modelling which does not alter existing databases. Within this report, existing databases are analysed to derive key insights for setting-up a harmonised metabase. As available databases comprise statistical databases as well as scientific model databases, both groups are studied. Statistical databases provide information which statistical organisations received from their reporters, while the aim of scientific databases is to provide harmonised, complete and consistent data series that can be used for research and modelling. Nevertheless, a statistical database can also serve as a model database, such as e.g. PS&D. Statistical databases from international institutions (FAO, USDA, Eurostat), as well as model databases (AGLINK/COSIMO, AGMEMOD, CAPRI/CAPSIM, ESIM, FAPRI, GTAP, FARM, IMPACT), were studied to find ways of consolidating data and providing insights that allow for a better comparison of model results. For this reason, various classification schemes used in agricultural statistics were reviewed (country, product, balance item, year, unit). Apart from this, the study investigated the manner in which the different modelling groups have dealt with these classifications in their respective databases. Besides a common classification, a harmonised database for market modelling purposes will require further efforts to be applied to a consolidation effort, supplemented by methods dealing with completion and balancing. How to obtain EU publications Our priced publications are available from EU Bookshop (http://bookshop.europa.eu), where you can place an order with the sales agent of your choice. The Publications Office has a worldwide network of sales agents. You can obtain their contact details by sending a fax to (352) 29 29-42758. The mission of the JRC is to provide customer-driven scientific and technical support for the conception, development, implementation and monitoring of EU policies. As a service of the European Commission, the JRC functions as a reference centre of science and technology for the Union. Close to the policy-making process, it serves the common interest of the Member States, while being independent of special interests, whether private or national. LF-N A -2417-E N -C