Investors could take this as an indication that policies had deteriorated significantly and rush for the exits. This danger would be attenuated if pre-qualification was not a yes-or-no decision: if there were a range of facilities for which countries could be pre-qualified, they could be moved between them as circumstances changed.
FCL的一个潜在问题是，如果IMF取消了一些获得预授权国家的资格，那又该怎么办？投资者可能会将此视作有关国家政策剧烈恶化的一个信号，乃至蜂拥出逃。可以通过设计一种与授权机制来减少这种危险，不要简单地同意或拒绝，而是提供多种工具供有关国家选择，让它们可以在情况有所变化时在不同品种之间做出调整。