The Dynamic Welfare Cost of Stagnation: An Alternative Measure to the Lucas-Obstfeld Model

This paper proposes an alternative measure to the Lucas-Obstfeld model to analyze the welfare costs of stagnation, and provides a practical illustration of both the Lucas-Obstfeld model and the alternative model. Compared with the Lucas-Obstfeld model, the alternative model can evaluate: (i) whether the policy was implemented in a timely fashion, (ii) whether the policy cost was expensive compared with the cost of stagnation, and (iii) whether the policy implemented was effective or whether an additional policy is required.