IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Log in (now much improved!) to save this paper

Two-Armed Restless Bandits with Imperfect Information: Stochastic Control and Indexability

  • Roland G. Fryer, Jr.
  • Philipp Harms

We present a two-armed bandit model of decision making under uncertainty where the expected return to investing in the "risky arm'' increases when choosing that arm and decreases when choosing the "safe'' arm. These dynamics are natural in applications such as human capital development, job search, and occupational choice. Using new insights from stochastic control, along with a monotonicity condition on the payoff dynamics, we show that optimal strategies in our model are stopping rules that can be characterized by an index which formally coincides with Gittins' index. Our result implies the indexability of a new class of "restless'' bandit models.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www.nber.org/papers/w19043.pdf
Download Restriction: no

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 19043.

as
in new window

Length:
Date of creation: May 2013
Date of revision:
Handle: RePEc:nbr:nberwo:19043
Note: IO LS
Contact details of provider: Postal:
National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.

Phone: 617-868-3900
Web page: http://www.nber.org
Email:


More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Kohlmann, M., 1982. "Existence of optimal controls for a partially observed semimartingale," Stochastic Processes and their Applications, Elsevier, vol. 13(2), pages 215-226, August.
  2. Keller, R Godfrey & Rady, Sven, 2009. "Strategic Experimentation with Poisson Bandits," CEPR Discussion Papers 7270, C.E.P.R. Discussion Papers.
  3. Klein, Nicolas & Rady, Sven, 2008. "Negatively Correlated Bandits," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 243, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  4. M. L. Weitzman, 1978. "Optimal Search for the Best Alternative," Working papers 214, Massachusetts Institute of Technology (MIT), Department of Economics.
  5. Jonathon M. Clegg, 2016. "Perception vs Reality: How Does The British Electorate Evaluate Economic Performance of Incumbent Governments In The Post War Period?," Economics Series Working Papers 143, University of Oxford, Department of Economics.
  6. Rothschild, Michael, 1974. "A two-armed bandit theory of market pricing," Journal of Economic Theory, Elsevier, vol. 9(2), pages 185-202, October.
  7. Ioannis Karatzas & Constantinos Kardaras, 2007. "The numéraire portfolio in semimartingale financial models," Finance and Stochastics, Springer, vol. 11(4), pages 447-493, October.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:19043. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.