1.DECOMPOSING PREFERENCE SHIFTS FOR MEAT AND FISH IN THE NETHERLANDS，MJJ Mangen, AM Burrell - JOURNAL OF AGRICULTURAL ECONOMICS，2001

2.A variant on the argument for the invariance of estimators in a singular system of equations，KR Mclaren - Econometric Reviews, 1990

3.The Structure of Changing Tastes for Meat and Fish in Great Britain. M Burton, T Young - European Review of Agricultural Economics 1992

4.Estimating preference change in meat demand in Saudi Arabia，SH Al-Kahtani, BEE Sofian - Agricultural Economics, 1995

5.Maximum likelihood estimation of a complete system of demand equations，AP Barten - European Economic Review, 1969

非常感谢!