BIG DATA: USING GOOGLE SEARCHES TO PREDICT THE UNEMPLOYMENT RATE - - PowerPoint PPT Presentation

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BIG DATA: USING GOOGLE SEARCHES TO PREDICT THE UNEMPLOYMENT RATE - - PowerPoint PPT Presentation

BIG DATA: USING GOOGLE SEARCHES TO PREDICT THE UNEMPLOYMENT RATE IN THE EU AIECE MEETING BRUSSELS 6 NOV 2015 JOONAS TUHKURI, ETLA, THE RESEARCH INSTITUTE OF THE FINNISH ECONOMY AND THE UNIVERSITY OF HELSINKI PARTNERS 25 Research


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BIG DATA: USING GOOGLE SEARCHES TO PREDICT THE UNEMPLOYMENT RATE IN THE EU

AIECE MEETING BRUSSELS 6 NOV 2015 JOONAS TUHKURI, ETLA, THE RESEARCH INSTITUTE OF THE FINNISH ECONOMY AND THE UNIVERSITY OF HELSINKI

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PARTNERS

25 ¡Research ¡Ins-tu-ons ¡from ¡Europe: ¡ ¡

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100 B

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  • Unemployment rate (Varian & Choi 2012, Askitas &

Zimmerman 2009, Tuhkuri 2014)

  • Housing market (Brynjolfsson & Wu 2013)
  • Sales (Goel et al 2010, PNAS)
  • Macro indicators (Koop & Onorante 2013)
  • Stock market (Preis et al 2013)
  • Consumption (Vosen & Schmidt 2012)
  • Influenza (Ginsberg et al. 2009, Nature)

LITERATURE

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h6ps://www.etla.fi/en/etlanow-­‑eu28/ ¡ Username ¡and ¡password: ¡etlanow2015 ¡

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ETLAnow Maps

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ETLAnow Forecasts

h6ps://www.etla.fi/en/etlanow-­‑eu28/ ¡ Username ¡and ¡password: ¡etlanow2015 ¡

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ETLAnow Search T erms

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ETLAnow on Twitter

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UNEMPLOYMENT

4 6 8 10 12 Unemployment (%) 2004m1 2006m1 2008m1 2010m1 2012m1 2014m1 2016m1 Time

FINLAND ¡

¡

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  • unemployment benefits
  • unemployment office
  • unemployment claim
  • unemployment compensation
  • unemployment insurance*

GOOGLE INDEX

*In ¡Finnish ¡

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GOOGLE INDEX

FINLAND ¡

¡

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FRANCE

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PORTUGAL

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BELGIUM

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CROSS CORRELATION

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GRANGER CAUSALITY

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GRANGER CAUSALITY

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Unemployment Lags Google Index

MODEL

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  • Fit the best model you can using the data you have

(which may often be past values of the time series itself.)

  • Add Google Trends data as an additional predictor
  • See how the out-of-sample forecast improves using

mean absolute error using a rolling window forecast.

  • Particularly interest in turning points since they are the

hardest thing to forecast.

MODEL

*Choi, Hyunyoung, and Hal Varian. "Predicting the present with google trends." Economic

Record 88.1 (2012): 2-9 ¡

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Unemployment rate

MODEL

): log(yt) = β0 + β1log(yt−1) + β2log(yt−12) + et ): log(yt) = β00 + β10log(yt−1) + β20log(yt−12) + β30xt + et

Google Index Lag Seasonal effects

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PANEL DATA

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PANEL DATA

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  • No improvements using search volumes for

Facebook

  • Results vary between countries
  • Possible solution: better search terms

VARIABLES

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  • Google searches predict unemployment
  • Limited to short-term predictions
  • Value for forecasting purposes episodic
  • Improvements still small
  • But useful for economic forecasting

CONCLUSION

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h6ps://www.etla.fi/en/etlanow-­‑eu28/ ¡ Username ¡and ¡password: ¡etlanow2015 ¡