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      <record key="001" att1="001" value="180175" att2="180175">001   180175</record>
      <field key="037" subkey="x">englisch</field>
      <field key="050" subkey="x">Aufsatz, Zeitschrift</field>
      <field key="076" subkey="">Ökonomie</field>
      <field key="079" subkey="y">http://dx.doi.org/10.1007/s00181-009-0255-0</field>
      <field key="079" subkey="z">Oh, Dong-hyun - et al., A metafrontier approach for measuring Malmquist productivity index (pdf)</field>
      <field key="100" subkey="">Oh, Dong-hyun</field>
      <field key="103" subkey="">Centre of Exellence for Science and Innovation Studies, Royal Institute of Technology, Stockholm, Sweden</field>
      <field key="104" subkey="a">Lee, Jeong-dong</field>
      <field key="107" subkey="">Technology Management, Economics and Policy Program, Seoul National University, Seoul, Korea</field>
      <field key="331" subkey="">A metafrontier approach for measuring Malmquist productivity index</field>
      <field key="542" subkey="">0377-7332</field>
      <field key="542" subkey="w">1435-8921</field>
      <field key="544" subkey="n">EE38.2010(1);3</field>
      <field key="590" subkey="">Empirical Economics, A Journal of the Institute for Advanced Studies, Vienna, Austria</field>
      <field key="596" subkey="a">38.2010, issue 1, 47 - 64</field>
      <field key="700" subkey="">C61</field>
      <field key="700" subkey="">O33</field>
      <field key="700" subkey="">O47</field>
      <field key="700" subkey="">O57</field>
      <field key="720" subkey="">Malmquist productivity index</field>
      <field key="720" subkey="">Efficiency change</field>
      <field key="720" subkey="">Technical change</field>
      <field key="720" subkey="">Technical leadership</field>
    </SEQUENTIAL>
  </section>