Credit distortion and financial crisis

A simple and consistent theory based on credit distortion is developed to understand the origin of financial crises in the emerging markets. We prove that without the guarantee of various government agencies on the credit risk of foreign loans, the interest rate on foreign loans would be the same as the domestic loans, which would eliminate the incentive to borrow foreign loans on a great scale. We demonstrate that the common phenomena preluding the crisis, such as heavy foreign borrowing and overinvestment in real estate, are rational choices when a particular currency is overvalued and cheap credit is available.