Abstract Rational expectations (RE) frameworks featuring informational constraints are becoming increasingly popular in macroeconomic research. A recent strand of literature has explored the analytics of RE models with informational subperiods, in which the occurrence of exogenous shocks is period-specific and decision makers condition their own choices and expectations upon a sequence of nested information sets (timing restrictions). Assuming the unrestricted (full information) RE model satisfies saddle-path stability, this paper provides (i) necessary and sufficient conditions for existence of an uncountably infinite set of linearly perturbed solutions to its restricted (informationally constrained) counterpart, and (ii) an algorithm for computing the full set of sunspot solutions when equilibrium indeterminacy occurs.

中文翻译：

---

计算具有时间限制的理性预期模型的黑子解决方案

摘要具有信息约束的理性期望（RE）框架在宏观经济研究中越来越受欢迎。最近的一连串文献探索了具有信息子周期的RE模型的分析，其中外来冲击的发生是特定于时间段的，决策者根据一系列嵌套信息集（时序限制）来决定自己的选择和期望。假设无限制的（完整信息）RE模型满足鞍形路径稳定性，则本文提供（i）对其限制（信息约束）对应项存在无穷无穷线性扰动解集的必要和充分条件，以及（ii）平衡不确定性发生时用于计算全套黑子解的算法。