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This paper presents an analysis of the impact of political regimes and type of military recruitment on the probability of the occurrence of international conflicts. In the last few years, the (re) introduction of military conscription has been a focus of public debate, but empirical analysis of the issue remains limited. We argue that democratic nations with conscription-based military recruitment in place are less likely to initiate international conflicts than those with voluntary recruitment because public opinion will estimate a higher probability of direct involvement in disputes, causing political leaders to refrain from conflicts, even though stable military resources are in place. On the other hand, authoritarian nations with conscription-based recruitment systems are more likely to engage in conflicts than those with voluntary recruitment systems because political leaders are not accountable to the people, even though the cost of war is calculated in the same manner as that in democratic nations. To test this reasoning, we use directed-dyadic data from 1816 to 2005. Our analysis strongly supports our theoretical expectations.

The aim of this paper is to identify (1) the categories in which it is easier or more difficult for local municipalities to implement green purchasing and (2) the role and extent of green purchasing policy (GPP) in promoting green purchasing. To characterize the green purchasing potential of different categories, we examine the green purchasing rate, or the ratio of green products/services to total products/services purchased, of 21 categories of items. We employ data from a unique survey conducted by the Japanese Ministry of the Environment, which provides data on green procurement in municipalities. We observe that air conditioners suffer from low green purchasing rates, whereas most municipalities purchase green products in the paper products and stationery categories. We also examine the relationship between green purchasing rates and GPPs to identify the role and extent of GPPs. Our regression analyses reveal that the presence of a GPP is associated with higher implementation and measurement rates of green purchasing. This pattern is particularly evident for the categories in which many municipalities without GPPs purchase green products but, in most cases, do not measure their green purchasing rate.

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