000 02458cam a22003497 4500
001 w26505
003 NBER
005 20211020103934.0
006 m o d
007 cr cnu||||||||
008 210910s2019 mau fo 000 0 eng d
100 1 _aLehrer, Steven F.
_933148
245 1 0 _aDoes High Frequency Social Media Data Improve Forecasts of Low Frequency Consumer Confidence Measures? /
_cSteven F. Lehrer, Tian Xie, Tao Zeng.
260 _aCambridge, Mass.
_bNational Bureau of Economic Research
_c2019.
300 _a1 online resource:
_billustrations (black and white);
490 1 _aNBER working paper series
_vno. w26505
500 _aNovember 2019.
520 3 _aSocial media data presents challenges for forecasters since one must convert text into data and deal with issues related to these measures being collected at different frequencies and volumes than traditional financial data. In this paper, we use a deep learning algorithm to measure sentiment within Twitter messages on an hourly basis and introduce a new method to undertake MIDAS that allows for a weaker discounting of historical data that is well-suited for this new data source. To evaluate the performance of approach relative to alternative MIDAS strategies, we conduct an out of sample forecasting exercise for the consumer confidence index with both traditional econometric strategies and machine learning algorithms. Irrespective of the estimator used to conduct forecasts, our results show that (i) including consumer sentiment measures from Twitter greatly improves forecast accuracy, and (ii) there are substantial gains from our proposed MIDAS procedure relative to common alternatives.
530 _aHardcopy version available to institutional subscribers
538 _aSystem requirements: Adobe [Acrobat] Reader required for PDF files.
538 _aMode of access: World Wide Web.
588 0 _aPrint version record
690 7 _aC58 - Financial Econometrics
_2Journal of Economic Literature class.
690 7 _aG17 - Financial Forecasting and Simulation
_2Journal of Economic Literature class.
700 1 _aXie, Tian.
700 1 _aZeng, Tao.
710 2 _aNational Bureau of Economic Research.
830 0 _aWorking Paper Series (National Bureau of Economic Research)
_vno. w26505.
856 4 0 _uhttps://www.nber.org/papers/w26505
856 _yAcceso en lĂ­nea al DOI
_uhttp://dx.doi.org/10.3386/w26505
942 _2ddc
_cW-PAPER
999 _c321617
_d280179