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Organization size and the optimal investment in cash

journal contribution
posted on 2012-07-30, 09:15 authored by Andrew Higson, Yoshikatsu Shinozawa, Mark Tippett
Miller & Orr (1966, Q. J. Econ., 80, 413–435) formulate a cash management model under which an organization’s cash flow evolves in terms of a stationary random walk. This, in turn, implies that the organization’s demand for cash will not grow over time. However, as organizations grow one would expect the demand for cash to grow as well. Given this, we formulate a cash management model under which movements in an organization’s cash balance hinge on its current rate of output or an equivalent size measure. Cash is withdrawn and invested in interest-bearing securities when the cash to output ratio becomes too high, while securities are sold and the proceeds deposited in a non-interest-bearing bank account when the cash to output ratio becomes too low. The control limits are determined so as to minimize the expected annual cost of a unit of output. Our analysis shows that when organization’s cash flows follow a non-stationary process, the optimal cash management policies are profoundly different to those obtained under the Miller & Orr (1966) model.

History

School

  • Business and Economics

Department

  • Business

Citation

HIGSON, A.W., SHINOZAWA, Y. and TIPPETT, M.J., 2012. Organization size and the optimal investment in cash. IMA Journal of Management Mathematics, 21 (1), pp. 27-38.

Publisher

© The authors. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications.

Version

  • NA (Not Applicable or Unknown)

Publication date

2010

Notes

This article was published in the journal, IMA Journal of Management Mathematics: imaman.oxfordjournals.org/

ISSN

1471-6798

eISSN

1471-678X

Language

  • en

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