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篇名作者刊名出版年查看
Measuring the social costs of suboptimal combinations of policyinstruments: A general framework and an example Bullock, D.S.;Salhofer, K.; Agricultural Economics 1998-05-01 查看
Policy instruments for sustainable land management: the case of highlandsmallholders in Ethiopia Shiferaw, B.;Holden, S.T.; Agricultural Economics 2000-04-01 查看
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