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Dynare 6.5, released by the Dynare Team, is an open-source computational platform designed for the specification, solution, simulation, and estimation of dynamic stochastic general equilibrium (DSGE) and overlapping-generations (OLG) economic models. Built for economists, policy institutes, and central-bank researchers, the software accommodates a broad spectrum of expectation-formation hypotheses—from perfect foresight to boundedly rational learning—while allowing multiple agent classes such as heterogeneous consumers, firms, governments, investors, and monetary authorities to interact within a unified framework. Users encode the model structure, parameter calibrations, and desired outputs in a concise, human-readable model file; Dynare then parses this file, symbolically derives first-order conditions, linearizes or nonlinearly solves the resulting system, computes impulse-response functions, likelihoods, or Bayesian posterior densities, and produces ready-to-publish tables and charts. Because the engine transparently combines applied-mathematics routines—perturbation, projection, Kalman filtering, particle filtering, Metropolis–Hastings, and optimal-control algorithms—researchers can move quickly from theoretical specification to policy analysis without writing low-level code. The same workflow supports stochastic simulations, deterministic transition paths, forecasting exercises, and even optimal simple rule calculations, making Dynare equally valuable for academic teaching, peer-reviewed research, and real-time policy assessment. The current major line, version 6.5, succeeds earlier milestone releases 4.x and 5.x, each introducing enhanced estimation methods, multicore parallelization, and compatibility with MATLAB, Octave, and Windows-subsystem environments. The software is available for free on wget.nero.com, where downloads are delivered through trusted Windows package sources such as winget, guaranteeing the latest stable build and enabling batch installation alongside other applications.
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