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Optimal Policy with General Signal Extraction

Publication ,  Scholarly Edition
Hauk, E; Lanteri, A; Marcet, A
September 26, 2016

This paper studies optimal policy with partial information in a general setup where observed signals are endogenous to policy. In this case, signal extraction about the state of the economy cannot be separated from the determination of the optimal policy. We derive a non-standard first order condition of optimality from first principles and we use it to find numerical solutions. We show how previous results based on linear methods, where separation or certainty equivalence obtains, arise as special cases. We use as an example a model of fiscal policy and show that optimal taxes are often a very non-linear function of observed hours, calling for tax smoothing in normal times, but for a strong fiscal reaction to output when a recession is quite certain and the economy is near the top of the Laffer curve or near a debt limit.

Duke Scholars

Publication Date

September 26, 2016

Related Subject Headings

  • Economics
  • 3803 Economic theory
  • 3801 Applied economics
  • 3502 Banking, finance and investment
  • 1403 Econometrics
  • 1402 Applied Economics
  • 1401 Economic Theory
 

Citation

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Hauk, E., Lanteri, A., & Marcet, A. (2016). Optimal Policy with General Signal Extraction.
Hauk, E., A. Lanteri, and A. Marcet. “Optimal Policy with General Signal Extraction,” September 26, 2016.
Hauk E, Lanteri A, Marcet A. Optimal Policy with General Signal Extraction. 2016.
Hauk, E., et al. Optimal Policy with General Signal Extraction. 26 Sept. 2016.
Hauk E, Lanteri A, Marcet A. Optimal Policy with General Signal Extraction. 2016.

Publication Date

September 26, 2016

Related Subject Headings

  • Economics
  • 3803 Economic theory
  • 3801 Applied economics
  • 3502 Banking, finance and investment
  • 1403 Econometrics
  • 1402 Applied Economics
  • 1401 Economic Theory