The cost-benefit analyses of the monetary union take a broader view compared to the classical OCA theory.The analyses point out the following. 同傳統的最優貨幣區理論相比，貨幣同盟的成本收益分析從更為廣泛的視角審視國家加入貨幣同盟的利弊得失。
He showed that optimal policy would stabilise wages and service prices, allowing the overall prices of goods and services to fall at a rate equal to the real rate of interest. 他提出，最優貨幣政策應該是在保持工資和服務業價格穩定的基礎上，允許商品和服務的總體價格水平的增速下降到與實際利率相當的水平。
