投机性冲击是指投机资金利用和制造各种资产(如外汇)价格的波动，而获取利润，并给所在国的金融体系乃至整体经济运行造成严重的后果。 投机性冲击的含义有这样几个层次： 一是所冲击的目标货币实行固定汇率制，冲击的对象国实行资本与金融项目下的货币可兑换；二是外汇市场交易主体推断该货币名义汇率出现高估；三是投机者在短期内连续大量抛售该货币，其目的在于迫使该货币大幅贬值。
dynamic speculative attacks-动态的投机性攻击-知来数据 Key words: Speculative attack, currency crisis, coordination, informational [gap=148]关键词：投机性攻击，货币危机，协调，信息 ..
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期望仅仅通过救助的会谈就能够缓和对希腊投机性攻击。
The hope is that the mere talk of a rescue will be enough to ease speculative attacks on Greece.
意大利债券市场规模为世界第三，如此大规模并具流动性的市场较希腊与葡萄牙这样的小国更能抵御投机性攻击。
The Italian bond market is the world's third-largest. Such a large and liquid market is less vulnerable to speculative attack than a small one, such as Greece's or Portugal's.
它能够保证它们不亏欠大量外债，同时也能保证它们的货币和有价证券被少量的交易，从而不给投机性攻击创造任何空间。
It is reassuring that none of them has much foreign debt, and that their currencies and securities are only lightly traded, creating little scope for a speculative attack.
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