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The roles of expected profitability, Tobin's Q and cash flow in econometric models of company investment

Author

Listed:
  • Vlieghe, Gertjan

    (Bank of England)

  • Stephen Bond
  • Alexander Klemm
  • Rain Newton-Smith
  • Murtaza Syed

Abstract

Evidence that cash flow has a significant effect on investment after controlling for Tobin's average Q has been interpreted as suggesting the importance of financing constraints. Recent work shows that the Q model may not be identified if there are `bubbles' in stock market valuations that are persistent and correlated with fundamental values. Cash flow may then provide additional information about expected profitability that is not captured by average Q. Using data on UK companies, we find severe measurement error in average Q. We find that cash flow becomes insignificant after controlling for expected profitability using analysts' earnings forecasts (I/B/E/S).

Suggested Citation

  • Vlieghe, Gertjan & Stephen Bond & Alexander Klemm & Rain Newton-Smith & Murtaza Syed, 2003. "The roles of expected profitability, Tobin's Q and cash flow in econometric models of company investment," Royal Economic Society Annual Conference 2003 212, Royal Economic Society.
    • Handle: RePEc:ecj:ac2003:212
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    JEL classification:

    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G3 - Financial Economics - - Corporate Finance and Governance

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