英文文献：Banking On Extinction: Ivory Storage And Elephant Conservation-濒临灭绝:象牙储存和大象保护
英文文献作者：Bulte, Erwin H.,Horan, Richard D.,Shogren, Jason F.
英文文献摘要：
Ivory poachers threaten the half million remaining African elephants. In response, Kremer and Morcom (2000) offer a novel solution to reduce the risk of extinction -- a local government can stockpile ivory and threaten to dump it on the market if the elephant population falls too low lowering the expected returns from ivory sales and driving poachers out of business). We show that ivory stockpiling could be detrimental to elephant conservation because large stocks create strong incentives for strategic extinction by African governments. This result suggests an alternative strategy to enhance the viability of African elephant stocks -- international conservation organizations rather than governments should hold the stockpiles.

象牙盗猎者威胁着仅存的50万头非洲大象。作为回应,克雷默和Morcom(2000)提供了一个新颖的解决方案来减少灭绝的风险,当地政府可以库存象牙,威胁将在市场上如果大象人口下降过低降低了预期收益从象牙销售业务)和驾驶偷猎者。我们的研究表明，储存象牙可能对大象保护有害，因为大量的象牙会刺激非洲各国政府采取战略性灭绝行动。这一结果提出了另一种提高非洲象种群生存能力的策略——应该由国际保护组织而不是政府来持有这些储备。