近日，我院张志祥教授与约翰霍普金斯大学M.Ali Khan教授合作的有关两部门随机增长的一篇文章在国际期刊Journal of Economic Dynamics and Control（中财AA类）在线发表。

摘要：This paper shows that the introduction of uncertainty in the two-sector model due to Robinson-Solow-Srinivasan (RSS) fully subdues the veritable plethora of the results that have been obtained the theory of deterministic optimal growth. Rather than an “anything goes” theorem that admits optimal cyclical and chaotic trajectories for the discrete-time deterministic version, we present results on the existence, uniqueness, asymptotic stability and a comparative-static properties of the steady state measure. We relate the basic intuition of our result to global games, and note that the properties of value and policy functions we identify rely on “supermodularity” and “increasing-differences property” of Veinott-Topkis-Milgrom-Shannon. While of interest in themselves, our results highlight a methodological advance in developing the theory of optimal growth without Ramsey-Euler conditions.

作者介绍：张志祥，在北京师范大学取得数学学士和硕士，在北京大学取得数学博士，在约翰霍普金斯大学取得经济学博士，曾在北京大学和新加坡国立大学工作，现为一竞技中国经济与管理研究院教授。曾在Annals of Economics and Finance, Economic Theory, Economic Modelling, Games and Economic Behavior, Journal of Mathematical Economics, Mathematical Social Science, Transactions of American Mathematical Society, 北京大学学报，数学进展，应用数学学报等学术刊物发表文章。

文章链接：https://doi.org/10.1016/j.jedc.2022.104583