RePEc: Research Papers in Economics · 19 citations · 34 references
Open access
ComputingComputer ScienceEconomicsCausal InferenceInformation RetrievalMachine LearningCausal DiscoveryData AnalysisHigh-frequency Data AnalysisSearch AnalyticsUnemploymentWeb MiningCross-country ComparabilityDifference-in-differencesSearch In UnemploymentSearch Query Data MiningUnemployment InformationWeb Search Indicators
The economic crisis caused by the covid-19 pandemic is unprecedented in recent history. We contribute to a growing literature investigating the economic consequences of covid-19 by showing how unemployment-related online searches across the EU27 reacted to the introduction of lock-downs. We exploit Google Trends topics to retrieve over two thousand search queries related to unemployment in 27 countries. We nowcast the monthly unemployment rate in the EU Member States to assess the relationship between search data and the underlying phenomenon as well as to identify the keywords that improve predictive accuracy. Drawing from this finding, we use the set of best predictors in a Difference-in-Differences framework to document a surge of unemploymentrelated searches in the wake of lock-downs of about 30%. This effect persists for more than five weeks. We suggest that the effect is most likely due to an increase in unemployment expectations.
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Leo Breiman · Machine Learning · 2001 · 126.2K citations · Full text
Feature Selection with the<b>Boruta</b>Package
Miron B. Kursa, Witold R. Rudnicki · Journal of Statistical Software · 2010 · 5.2K citations · Full text
Zhi Da, Joseph Engelberg, Pengjie Gao · The Journal of Finance · 2011 · 3.1K citations · Full text
Variable selection using random forests
Robin Genuer, Jean‐Michel Poggi, Christine Tuleau-Malot · Pattern Recognition Letters · 2010 · 2.6K citations
Computing, Data Science, Data Mining +13
Francis X. Diebold, Roberto S. Mariano · Journal of Business and Economic Statistics · 1995 · 2.4K citations