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Where Has All the Data Gone?

Author

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  • Maryam Farboodi
  • Adrien Matray
  • Laura Veldkamp
  • Venky Venkateswaran

Abstract

As financial technology improves and data becomes more abundant, do market prices reflect this data growth? While recent studies documented rises in the information content of prices, we show that, across asset types, there is data divergence. Large, growth stock prices increasingly reflect information about future firm earnings. This is the rise reflected in the previous studies. But over the same time period, the information content of small and value firm prices was flat or declining. Our structural estimation allows us to disentangle these informational trends from changing asset characteristics. These facts pose a new puzzle: Amidst the explosion of data processing, why has this data informed only the prices of a subset of firms, instead of benefiting the market as a whole? Our structural model offers a potential answer: Large growth firms' data grew in value, as big firms got bigger and growth magnified the effect of these changes in size.

Suggested Citation

  • Maryam Farboodi & Adrien Matray & Laura Veldkamp & Venky Venkateswaran, 2020. "Where Has All the Data Gone?," NBER Working Papers 26927, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:26927
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    Cited by:

    1. Jasmin Gider & Simon N. M. Schmickler & Christian Westheide, 2021. "High-Frequency Trading and Price Informativeness," CRC TR 224 Discussion Paper Series crctr224_2021_257, University of Bonn and University of Mannheim, Germany.
    2. Mr. Arnoud W.A. Boot & Peter Hoffmann & Mr. Luc Laeven & Mr. Lev Ratnovski, 2020. "Financial Intermediation and Technology: What’s Old, What’s New?," IMF Working Papers 2020/161, International Monetary Fund.
    3. Chan, Kam Fong & Marsh, Terry, 2022. "Asset pricing on earnings announcement days," Journal of Financial Economics, Elsevier, vol. 144(3), pages 1022-1042.
    4. Jan Libich & Liam Lenten, 2022. "Hero or villain? The financial system in the 21st century," Journal of Economic Surveys, Wiley Blackwell, vol. 36(1), pages 3-40, February.
    5. Laeven, Luc & Boot, Arnoud & Hoffmann, Peter & Ratnovski, Lev, 2020. "Financial Intermediation and Technology: What’s Old, What’s New?," CEPR Discussion Papers 15004, C.E.P.R. Discussion Papers.
    6. Glebkin, Sergei & Kuong, John Chi-Fong, 2023. "When large traders create noise," Journal of Financial Economics, Elsevier, vol. 150(2).
    7. Boot, Arnoud & Hoffmann, Peter & Laeven, Luc & Ratnovski, Lev, 2021. "Fintech: what’s old, what’s new?," Journal of Financial Stability, Elsevier, vol. 53(C).

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    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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