产业壁垒的存在是迫使企业做出进入退出行为的重要手段。在学术界，一般采用规模经济、产品差异等作为进入退出壁垒分析的基本形式，但针对具体产业壁垒的研究还较为缺乏。尤其是煤炭产业产能过剩问题最根本的原因是壁垒问题。本文尝试从供给侧改革视角下对煤炭产业的进入退出壁垒从政府、资源、环境和社会因素等方面进行理论分析。
The existence of industrial barriers is an important means to force enterprises to make entry and exit behaviors. In the academic world, economies of scale and product differences are generally adopted as the basic forms of entry and exit barriers analysis, but the research on specific industrial barriers is relatively lacking. In particular, the coal industry overcapacity is the most fundamental reason for the problem of barriers. This paper attempts to analyze the entry and exit barriers of the coal industry from the perspective of supply-side reform from the aspects of government, resources, environment and social factors.
