Getting Prices Right: What Should Be Done?
论文指出消费者物价指数可能高估生活成本上涨，但短期内美国劳工统计局难以采取有效措施，因为质量测量存在概念和识别问题，且超级价格指数不可行，对异质消费者使用单一指数也存疑。
Much of the profession accepts that the CPI likely overstates the rate of increase of the cost-of-living. It is less clear that there are sound and feasible steps that the BLS can adopt to improve matters in the short run. There are unresolved conceptual and identification problems in the measurement of quality. Superlative price indexes are not feasible, and feasible approximations are not superlative, and may not even be better. The need for a single index that aggregates over heterogeneous consumers with different incomes, tastes, and needs casts serious doubt on the cost-of-living approach.