The paper estimated the technical efficiency index of Taiwan rice farmers using panel data and a stochastic production frontier with heteroscedasticity during the period 1998-2004.

• 摘要本文利用考虑异质变异性的随机生产边界模型，同时估算1998-2004期间稻作农家的生产风险与技术效率，并分析其影响因素。