When two or more countries achieve monetary integration, the economies of the two countries use currency and have . Which of the following are included in economist Robert Mundell's requirements for an optimal currency area? Check all that apply. Check all that apply. Coordinated fiscal policies Capital mobility Labor mobility Fixed wages Although the United States is one country, consider each of the 50 states in the United Stated as its own economy. For example, California would be considered one economy, while Nevada would be considered a separate economy. Use the following table to indicate whether these 50 separate state-level economies meet the conditions proposed by Rober Mundell. Condition Yes No Capital mobility Labor mobility