Quantitative Economics
Journal of the Econometric Society
Edited by: Bernard Salanié • Print ISSN: 1759-7323 • Online ISSN: 1759-7331
Edited by: Bernard Salanié • Print ISSN: 1759-7323 • Online ISSN: 1759-7331
Quantitative Economics: Jan, 2026, Volume 17, Issue 1
https://doi.org/10.3982/QE2555
p. 1-37
Jesús Fernández‐Villaverde|Isaiah Hull
We introduce novel algorithms for solving dynamic programming problems in economics on a quantum annealer, a specialized quantum computer used for combinatorial optimization. Quantum annealers begin in a superposition of all states and generate candidate global solutions in milliseconds, regardless of problem size. In contrast to existing methods, those developed in this paper (1) recover value and policy functions, (2) avoid fundamental scaling bottlenecks, and (3) are already implementable for small (but non‐trivial) problems on current hardware. We demonstrate the method by solving the real business cycle model on a quantum annealer.
Jesús Fernández-Villaverde and Isaiah Hull
This supplement contains material not found within the manuscript.
Jesús Fernández-Villaverde and Isaiah Hull
The replication package for this paper is available at https://doi.org/10.5281/zenodo.16963156. The Journal checked the data and codes included in the package for their ability to reproduce the results in the paper and approved online appendices. Given the highly demanding nature of the algorithms, the reproducibility checks were run on a simplified version of the code, which is also available in the replication package.