In the wake of currency and banking crises in Latin America, Europe, and Asia, these articles provide a regional early warning system prototype designed to anticipate emerging macroeconomic, financial, and corporate sector vulnerabilities. Current theories and practices in the banking world are reviewed and analyzed with an eye toward which economic variables and indicators must be monitored to prevent further crises. The current banking and currency situations in Indonesia, Malaysia, the Philippines, and Thailand are examined and current thinking on how these countries can prevent currency and banking crises is detailed.