WTO Working Papers

WTO working papers usually represent research in progress. Such research may be conducted in the preparation of WTO Secretariat reports, studies or other material for WTO members. The papers are circulated for comment because the WTO considers critical review of professional research to be extremely important.


Forecasting Trade

This paper develops a set of time series models to provide short-term forecasts (6 to 18 months ahead) of international trade both at the global level and for selected regions. Our results compare favourably to other forecasts, notably by the International Monetary Fund, as measured by standard evaluation measures, such as the root mean square forecast error. In comparison to other models, our approach offers several methodological advantages, inter alia, a focus on import growth as the core variable, the avoidance of certain difficulties affecting the performance of structural models, the selection of variables and lags on the basis of theoretical considerations and empirical testing as well as a full documentation of the modelling process.


Keywords: Forecasting, international trade, time series, WTO
JEL: F17: International Economics / Trade / Trade: Forecasting and Simulation; C32: Mathematical and Quantitative Methods / Multiple or Simultaneous Equation Models; Multiple Variables / Multiple or Simultaneous Equation Models: Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models; C53: Mathematical and Quantitative Methods / Econometric Modeling / Forecasting and Prediction Methods; Simulation Methods; C22: Mathematical and Quantitative Methods / Single Equation Models; Single Variables / Single Equation Models; Single Variables: Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
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