"But while this method of classification may be suited for measuring development for an agricultural or an industrial society, in the information age of the future, new criteria are needed," Professor Pien says.
「從數目字上看，我國產業結構的調整，似乎是遠景可期的」，台大教授邊裕淵說：「不過這是從農業社會到工業社會的分類方法；未來是資訊時代，應該有新的分法及評斷一國是否已開發的指標。」