[backcolor=rgba(255, 255, 255, 0.917969)]Dynare 4.3.0 版发布了
[backcolor=rgba(255, 255, 255, 0.917969)]新功能如下:
[backcolor=rgba(255, 255, 255, 0.917969)]Here is the list of the main user-visible changes:
[backcolor=rgba(255, 255, 255, 0.917969)]* New major algorithms:
[backcolor=rgba(255, 255, 255, 0.917969)]- Nonlinear estimation with a particle filter based on a second order
[backcolor=rgba(255, 255, 255, 0.917969)] approximation of the model, as in Fernández-Villaverde and Rubio-Ramírez
[backcolor=rgba(255, 255, 255, 0.917969)] (2005); this is triggered by setting `order=2' in the `estimation' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Extended path solution method as in Fair and Taylor (1983); see the
[backcolor=rgba(255, 255, 255, 0.917969)] `extended_path' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Support for Markov-Switching Structural Bayesian VARs (MS-SBVAR) along the
[backcolor=rgba(255, 255, 255, 0.917969)] lines of Sims, Waggoner and Zha (2008) (see the dedicated section in the
[backcolor=rgba(255, 255, 255, 0.917969)] reference manual)
[backcolor=rgba(255, 255, 255, 0.917969)]- Optimal policy under discretion along the lines of Dennis (2007); see the
[backcolor=rgba(255, 255, 255, 0.917969)] `discretionary_policy' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Identification analysis along the lines of Iskrev (2010); see the
[backcolor=rgba(255, 255, 255, 0.917969)] `identification' command
[backcolor=rgba(255, 255, 255, 0.917969)]- The Global Sensitivity Analysis toolbox (Ratto, 2008) is now part of the
[backcolor=rgba(255, 255, 255, 0.917969)] official Dynare distribution
[backcolor=rgba(255, 255, 255, 0.917969)]* Other algorithmic improvements:
[backcolor=rgba(255, 255, 255, 0.917969)]- Stochastic simulation and estimation can benefit from block decomposition
[backcolor=rgba(255, 255, 255, 0.917969)] (with the `block' option of `model'; only at 1st order)
[backcolor=rgba(255, 255, 255, 0.917969)]- Possibility of running smoother and filter on a calibrated model; see the
[backcolor=rgba(255, 255, 255, 0.917969)] `calib_smoother' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Possibility of doing conditional forecast on a calibrated model; see the
[backcolor=rgba(255, 255, 255, 0.917969)] `parameter_set=calibration' option of the `conditional_forecast' command
[backcolor=rgba(255, 255, 255, 0.917969)]- The default algorithm for deterministic simulations has changed and is now
[backcolor=rgba(255, 255, 255, 0.917969)] based on sparse matrices; the historical algorithm (Laffargue, Boucekkine
[backcolor=rgba(255, 255, 255, 0.917969)] and Juillard) is still available under the `stack_solve_algo=6'option of the
[backcolor=rgba(255, 255, 255, 0.917969)] `simul' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Possibility of using an analytic gradient for the estimation; see the
[backcolor=rgba(255, 255, 255, 0.917969)] `analytic_derivation' option of the `estimation' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Implementation of the Nelder-Mead simplex based optimization routine for
[backcolor=rgba(255, 255, 255, 0.917969)] computing the posterior mode; available under the `mode_compute=8' option of
[backcolor=rgba(255, 255, 255, 0.917969)] the `estimation' command
[backcolor=rgba(255, 255, 255, 0.917969)]- Implementation of the CMA Evolution Strategy algorithm for computing the
[backcolor=rgba(255, 255, 255, 0.917969)] posterior mode; available under the `mode_compute=9' option of the
[backcolor=rgba(255, 255, 255, 0.917969)] `estimation' command
[backcolor=rgba(255, 255, 255, 0.917969)]- New solvers for Lyapunov equations which can accelerate the estimation of
[backcolor=rgba(255, 255, 255, 0.917969)] large models; see the `lyapunov' option of the `estimation' command
[backcolor=rgba(255, 255, 255, 0.917969)]- New solvers for Sylvester equations which can accelerate the resolution of
[backcolor=rgba(255, 255, 255, 0.917969)] large models with block decomposition; see the `sylvester' option of the
[backcolor=rgba(255, 255, 255, 0.917969)] `stoch_simul' and `estimation' commands
[backcolor=rgba(255, 255, 255, 0.917969)]- The `ramsey_policy' command now displays the planner objective value
[backcolor=rgba(255, 255, 255, 0.917969)] function under Ramsey policy and stores it in `oo_.planner_objective_value'
[backcolor=rgba(255, 255, 255, 0.917969)]- Theoretical autocovariances are now computed when the `block' option is
[backcolor=rgba(255, 255, 255, 0.917969)] present
[backcolor=rgba(255, 255, 255, 0.917969)]- The `linear' option is now compatible with the `block' and `bytecode'
[backcolor=rgba(255, 255, 255, 0.917969)] options
[backcolor=rgba(255, 255, 255, 0.917969)]- The `loglinear' option now works with purely backward or forward models at
[backcolor=rgba(255, 255, 255, 0.917969)] first order
[backcolor=rgba(255, 255, 255, 0.917969)]