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ManuscriptreceivedJanuary2002,revisedDecember2002・
ｌＩｗｏｕｌｄｌｉｋｅｔｏｔｈａｎｋＤｒ，KenjiTakeuchi，DrTaijiHagiwara，DrToyoakiWashida（Kobe
University),DrShinSaito（OsakaUniversity),DrShinichiroNakamura（WasedaUniversity),Ｍｒ・
Razaiimahefa（ＫｏｂｅUniversity)，andtwoanonymouscommentatorsibrhelpfUlcommentsand
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＊GraduateSchoolofEconomics,KobeUniversity2-l，Rokkodai-choNada-ku,Kobe657-8501Japan
E-mail:989.203e＠ykukobe-uacjp
６８JournalofAppliedlnpUt･OutputAnalysis,ＶＯＬ８，２００２
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Classiiicationofwaste
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Re煙ionallnDutOutDutanalvsisoflndustrialWaste87
Ｑ/､伽｡ﾉ”α〃’SbcjeltyQ/Ｗｍｅ』Ｗ"age"'e"／町，e血Vol,11,No.２，pp84-93（In
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，
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