Comments on ''Convergence Properties of the Likelihood of Computed Dynamic Models''
通过反例指出Fernández-Villaverde等人2006年论文中的命题2有误，并说明即使修正该命题，对参数估计也无实际意义；进一步分析表明，政策函数二阶近似误差对参数估计的影响至多是二阶的。
We show by counterexample that Proposition 2 in Fernández-Villaverde, Rubio-Ramírez, and Santos (Econometrica (2006), 74, 93–119) is false. We also show that even if their Proposition 2 were corrected, it would be irrelevant for parameter estimates. As a more constructive contribution, we consider the effects of approximation error on parameter estimation, and conclude that second order approximation errors in the policy function have at most second order effects on parameter estimates.