Skip to content
GitLab
Projects Groups Snippets
  • /
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
    • Contribute to GitLab
  • Sign in / Register
  • dynare dynare
  • Project information
    • Project information
    • Activity
    • Labels
    • Members
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
  • Issues 118
    • Issues 118
    • List
    • Boards
    • Service Desk
    • Milestones
  • Merge requests 4
    • Merge requests 4
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
  • Deployments
    • Deployments
    • Environments
    • Releases
  • Packages and registries
    • Packages and registries
    • Container Registry
  • Monitor
    • Monitor
    • Incidents
  • Analytics
    • Analytics
    • Value stream
    • CI/CD
    • Repository
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • DynareDynare
  • dynaredynare
  • Issues
  • #530
Closed
Open
Issue created Nov 10, 2013 by MichelJuillard@MichelJuillardDeveloper

checking singularity in first order approximation

Currently, we don't check for singularity in first order approximation when solving for static variables (is b10 singular?) or solving for shocks coefficient (is A_ singular?)

  1. We should probably add a warning to stoch_simul (and ramsey_policy)
  2. Should we care for estimation? Should expand the implicit prior to b10 and A_ non-singular?
  3. If b10 is singular, the model has a problem: it is not possible to determine some static variable from the solution of the dynamic part of the model
  4. The conditions under which A_ can be singular are mode difficult to determine.
Assignee
Assign to
Time tracking