## Title data

Becker, Stephanie ; Grüne, Lars ; Semmler, Willi:

**Comparing accuracy of second-order approximation and dynamic programming.**

*In:* Computational Economics.
Vol. 30
(March 2007)
Issue 1
.
- pp. 65-91.

ISSN 1572-9974

DOI: https://doi.org/10.1007/s10614-007-9087-1

## Abstract in another language

The accuracy of the solution of dynamic general equilibrium models has become a major issue. Recent papers, substituting second order for first order approximations, have shown to obtain significant differences in accuracy. Second order approximations have had some considerable success in solving for the decision variable of small as well as large scale models. Yet, the issue of accuracy is also relevant for the approximate solution of the value function. In numerous dynamic decision problems welfare needs to be computed through the approximation of the value function. Kim and Kim (2003), for example, find a reversal of welfare ordering by moving from first to second order approximations. Studies of the impact of monetary and fiscal policy on welfare have also to deal with the accuracy of the value function. Employing the base line stochastic growth model this paper compares the accuracy of the second order approximation and dynamic programming solution for both the decision variable as well as the value functions. We find that in a neighborhood of the equilibrium the second order approximation method peforms satisfactory while on larger regions dynamic programming performs better with respect to both.

## Further data

Item Type: | Article in a journal |
---|---|

Refereed: | Yes |

Keywords: | Dynamic general equilibrium model; Approximation methods; Second-order approximation; Dynamic programming |

Institutions of the University: | Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Mathematics V (Applied Mathematics) Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Mathematics V (Applied Mathematics) > Chair Mathematics V (Applied Mathematics) - Univ.-Prof. Dr. Lars Grüne |

Result of work at the UBT: | Yes |

DDC Subjects: | 500 Science 500 Science > 510 Mathematics |

Date Deposited: | 03 Mar 2021 11:03 |

Last Modified: | 23 Mar 2021 09:12 |

URI: | https://eref.uni-bayreuth.de/id/eprint/63625 |