共 5 条
[2]
CORDEN WM, 1957, ECON REC, V33, P129
[3]
WELFARE COST OF GRAIN PROTECTION IN UNITED KINGDOM
[J].
JOURNAL OF FARM ECONOMICS,
1967, 49 (03)
:597-&
[5]
LUTZ E, 1978, PRICE DISTORTIONS DE