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Forecasting GDP growth rates in the United States and Brazil using Google Trends

Author

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  • Bantis, Evripidis
  • Clements, Michael P.
  • Urquhart, Andrew

Abstract

In this paper we consider the value of Google Trends search data for nowcasting (and forecasting) GDP growth for a developed economy (the U.S.) and an emerging-market economy (Brazil). Our focus is on the marginal contribution of big data in the form of Google Trends data over and above that of traditional predictors, and we use a dynamic factor model to handle the large number of potential predictors and the “ragged-edge” problem. We find that factor models based on economic indicators and Google “categories” data provide gains compared to models that exclude this information. The benefits of using Google Trends data appear to be broadly similar for Brazil and the U.S., and depend on the factor model variable-selection strategy. Using more disaggregated Google Trends data than its “categories” is not beneficial.

Suggested Citation

  • Bantis, Evripidis & Clements, Michael P. & Urquhart, Andrew, 2023. "Forecasting GDP growth rates in the United States and Brazil using Google Trends," International Journal of Forecasting, Elsevier, vol. 39(4), pages 1909-1924.
    • Handle: RePEc:eee:intfor:v:39:y:2023:i:4:p:1909-1924
    DOI: 10.1016/j.ijforecast.2022.10.003
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