【案例分析題】

以下是近期《時代周刊》中介紹新上任的一位IMF官員對IMF未來如何發(fā)揮其職能的個人看法的材料：
WhatO’Neill has said repeatedly is that theI MF should stop playing fireman，rushing to help after a country’s finances have burst into flames，and becomea“firemarshal”（消防署署長）instead.This means interfering early，advising countries exactly what is wrong and what reforms are needed，tracking results and then issuing public warning when countries are heading for disaster.”if a country willfully（固執(zhí)地） follows bad policies that it’s been talked to about，”saysO’Neill，”we can be more relaxed in saying to them：’weare not going to be there when chickens come to roost（習語，指惡行的自作自受）.’”
請根據(jù)以上材料，回答下列問題：

你覺得他所說的導致一國出現(xiàn)貨幣金融危機的“壞政策”主要指的是些什么政策？試根據(jù)有關(guān)理論，說明“壞政策”是如何使一國經(jīng)濟陷入貨幣危機的。