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  • Author: Elizabeth N. Saunders
  • Publication Date: 10-2019
  • Content Type: Journal Article
  • Journal: International Security
  • Institution: Belfer Center for Science and International Affairs, Harvard University
  • Abstract: When and how do domestic politics influence a state's nuclear choices? Recent scholarship on nuclear security develops many domestic-political explanations for different nuclear decisions. These explanations are partly the result of two welcome trends: first, scholars have expanded the nuclear timeline, examining state behavior before and after nuclear proliferation; and second, scholars have moved beyond blunt distinctions between democracies and autocracies to more fine-grained understandings of domestic constraints. But without linkages between them, new domestic-political findings could be dismissed as a laundry list of factors that do not explain significant variation in nuclear decisions. This review essay assesses recent research on domestic politics and nuclear security, and develops a framework that illuminates when and how domestic-political mechanisms are likely to affect nuclear choices. In contrast to most previous domestic arguments, many of the newer domestic-political mechanisms posited in the literature are in some way top-down; that is, they show leaders deliberately maintaining or loosening control over nuclear choices. Two dimensions govern the extent and nature of domestic-political influence on nuclear choices: the degree of threat uncertainty and the costs and benefits to leaders of expanding the circle of domestic actors involved in a nuclear decision. The framework developed in this review essay helps make sense of several cases explored in the recent nuclear security literature. It also has implications for understanding when and how domestic-political arguments might diverge from the predictions of security-based analyses.
  • Topic: Security, Arms Control and Proliferation, Nuclear Weapons, Treaties and Agreements, International Security, Domestic politics, Nonproliferation
  • Political Geography: Russia, United States, China, Iran, North Korea
  • Author: Eliza Gheorghe
  • Publication Date: 04-2019
  • Content Type: Journal Article
  • Journal: International Security
  • Institution: Belfer Center for Science and International Affairs, Harvard University
  • Abstract: The evolution of the nuclear market explains why there are only nine members of the nuclear club, not twenty-five or more, as some analysts predicted. In the absence of a supplier cartel that can regulate nuclear transfers, the more suppliers there are, the more intense their competition will be, as they vie for market share. This commercial rivalry makes it easier for nuclear technology to spread, because buyers can play suppliers off against each other. The ensuing transfers help countries either acquire nuclear weapons or become hedgers. The great powers (China, Russia, and the United States) seek to thwart proliferation by limiting transfers and putting safeguards on potentially dangerous nuclear technologies. Their success depends on two structural factors: the global distribution of power and the intensity of the security rivalry among them. Thwarters are most likely to stem proliferation when the system is unipolar and least likely when it is multipolar. In bipolarity, their prospects fall somewhere in between. In addition, the more intense the rivalry among the great powers in bipolarity and multipolarity, the less effective they will be at curbing proliferation. Given the potential for intense security rivalry among today's great powers, the shift from unipolarity to multipolarity does not portend well for checking proliferation.
  • Topic: International Relations, Arms Control and Proliferation, Nuclear Weapons, Nuclear Power, Nonproliferation, International Relations Theory
  • Political Geography: Russia, United States, China