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Benchmarking methods can be used to extrapolate (or “nowcast”) low-frequency benchmarks on the basis of available high-frequency indicators. Quarterly national accounts are a typical example, where a number of monthly and quarterly indicators of economic activity are used to calculate preliminary annual estimates of GDP. Using both simulated and real-life national accounts data, this paper aims at assessing the prediction accuracy of three benchmarking methods widely used in the national accounts compilation: the proportional Denton method, the proportional Cholette-Dagum method with first-order autoregressive error, and the regression-based Chow-Lin method. The results show that the Cholette-Dagum method provides the most accurate extrapolations when the indicator and the annual benchmarks move along the same trend. However, the Denton and Chow-Lin methods could prevail in real-life cases when the quarterly indicator temporarily deviates from the target series.

Information storage and retrieval systems. --- National income --- Economic indicators --- Econometric models. --- Business indicators --- Indicators, Business --- Indicators, Economic --- Leading indicators --- Economic history --- Quality of life --- Economic forecasting --- Index numbers (Economics) --- Social indicators --- Net national product --- Flow of funds --- Gross national product --- Income --- Automatic data storage --- Automatic information retrieval --- Automation in documentation --- Computer-based information systems --- Data processing systems --- Data storage and retrieval systems --- Discovery systems, Information --- Information discovery systems --- Information processing systems --- Information retrieval systems --- Machine data storage and retrieval --- Mechanized information storage and retrieval systems --- Computer systems --- Electronic information resources --- Data centers --- Digital libraries --- Information organization --- Information retrieval --- Exports and Imports --- Macroeconomics --- Time-Series Models --- Dynamic Quantile Regressions --- Dynamic Treatment Effect Models --- Diffusion Processes --- Optimization Techniques --- Programming Models --- Dynamic Analysis --- Methodology for Collecting, Estimating, and Organizing Macroeconomic Data --- Data Access --- Trade: General --- General Aggregative Models: General --- Retail and Wholesale Trade --- e-Commerce --- International economics --- National accounts --- Exports --- Imports --- Trade in goods --- International trade --- Balance of trade --- Morocco --- E-Commerce