A Macroeconomic Model on Climate Change
全球变暖的宏观经济模型

This paper conducts a theoretical analysis on emission-reduction decisions dealing with global warming and their effects on economy-environment system. This analysis is entirely based on a continuous-time dynamic model. Reflecting considerations of intergenerational relationship, the model is classified to the widely accepted `representative agent model'. The models also follow the structures and functions of frequently used Integrated Assessment Models (IAMs) of global warming. Beyond this, the author boldly proceeds abstracts and simplifications to balance mathematical tractability and practical reasonability. Other features such as utility measuring of temperature also distinguish the models. Using mathematical methods of dynamic optimization, the authors deduce the basic models and discuss theoretical problems such as the steady state and optimal path of the system. The results have some implications to national strategies dealing with climate change.