Comments on 'Investment Cash Flow Sensitivity: Fact or Fiction?' by Senay Agca and Abon Mozumdar

Graph by Shutterstock.com

Article Highlights

  • .@AEIecon scholars assess the influence of cash flow on investment when controlling for error in Tobin’s Q.

    Tweet This

  • .@AEIecon’s Hassett and Oliner respond to “Investment Cash Flow Sensitivity: Fact or Fiction?" by Agca & Mozumdar

    Tweet This

In Cummins, Hassett, and Oliner (2006), we assessed the influence of cash flow on investment when controlling explicitly for measurement error in Tobin's Q. We showed that the cash-flow effects often found in other studies disappeared after controlling for this measurement error. We also showed that a measure of Q based on analyst forecasts of firm-level earnings does a better job of capturing the fundamentals that drive investment spending than does the usual measure of Q based on stock prices.

Agca and Mozumdar (2012), henceforth AM, assert that errors in our data and econometric methodology are responsible for both of our key findings. AM identify three alleged problems with our work: (a) that we may have misdated the cash-flow series in our dataset, (b) that the set of instruments we use is too restrictive, and (c) that our analyst-based measure of Q is flawed.

As discussed below, we do not find AM's critique to be compelling. First, AM provide no convincing evidence to support the claim that our cash-flow series was misdated. Second, even when AM modify our data to correct this alleged problem, use their preferred instruments, and substitute a different analyst-based measure of Q, their results do not overturn the central findings in our paper. We cannot emphasize this point strongly enough: When AM use our dataset, modified as they see fit, they do not reverse our results. Only when they construct their own dataset do their results differ substantially from those in our paper. Those results may be of interest in their own right, but they do not constitute a rebuttal of our findings.

 

Also Visit
AEIdeas Blog The American Magazine
About the Author

 

Kevin A.
Hassett

 

Stephen D.
Oliner

What's new on AEI

Making Ryan's tax plan smarter
image The teacher evaluation confronts the future
image How to reform the US immigration system
image Inversion hysteria
AEI on Facebook
Events Calendar
  • 25
    MON
  • 26
    TUE
  • 27
    WED
  • 28
    THU
  • 29
    FRI
Wednesday, August 27, 2014 | 3:00 p.m. – 4:15 p.m.
Teacher quality 2.0: Toward a new era in education reform

Please join AEI for a conversation among several contributors to the new volume “Teacher Quality 2.0: Toward a New Era in Education Reform” (Harvard Education Press, 2014), edited by Frederick M. Hess and Michael Q. McShane. Panelists will discuss the intersection of teacher-quality policy and innovation, exploring roadblocks and possibilities.

No events scheduled this day.
No events scheduled this day.
No events scheduled this day.
No events scheduled today.
No events scheduled this day.
No events scheduled this day.
No events scheduled this day.