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Abstract: The problem of coalmine safety production is not only a serious problem faced by China, but also a worldwide problem. For the first time we use the 1982—2014 crosscountry panel data of nine countries that they are rich in coal to investigate the impact of coalmine supervision mode and political institutions on coalmine accidents. Empirical evidence shows as follows: First, centralized supervision of coalmine safety production is conductive to reducing mortality rate of coalmine accidents. Changing from decentralized supervision to centralized supervision can reduce nearly half of mortality rate. Second, political institutions do not directly affect the coalmine mortality rate, which shows that the problem of coalmine safety production relates to supervision institutions rather than political institutions. Third, in developing countries, the effect of centralized supervision to reduce the mortality rate is more significant. Fourth, in transitional countries, both centralized supervision and improvement of accountability can reduce the mortality rate. The conclusion of this paper has important policy implications on crosscountries comparative analysis of coalmine accidents and containing coalmine accidents.

Key words: coalmine accidents , centralization , decentralization , regulation , institution