Further investigation reveals that insufficient supplies from the central bank were not to blame for the NT $ 1 coin shortage. The most likely explanation is that the government had been preaching the importance of savings to primary and secondary students for many years; inexpensive plastic piggy banks of all kinds could be found on the market and parents urged children to "feed" their pet swine change.
令人難以置信的是，當時一元硬幣不敷使用並不是中央銀行供應不足，最可能的原因居然是因為政府多年來一直透過教育體系，向學童灌輸儲蓄觀念，市面上出現各式各樣價廉物美的「塑膠豬」撲滿，家長也鼓勵兒童將硬幣拿來「餵」豬，一時間蔚為風氣。