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      <marc:subfield code="a">Co24-137/1981E-PDF</marc:subfield>
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      <marc:subfield code="a">Denny, M. </marc:subfield>
      <marc:subfield code="q">(Michael)</marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Operational efficiency in telecommunications / </marc:subfield>
      <marc:subfield code="c">by Michael Denny, Alain de Fontenay, Manuel Werner.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">[Department of Communications], </marc:subfield>
      <marc:subfield code="c">March 1981.</marc:subfield>
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      <marc:subfield code="a">1 online resource (1 volume (various pagings))</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Innovation, Science and Economic Development Canada].</marc:subfield>
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    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"This brief report is intended to be a non-technical introduction to the comparison of firms' efficiency. In particular, the development of new methods which we will be using in our telecommunications study are discussed. There are two broad approaches to comparative efficiency. The accounting method attempts to derive from data on the prices and quantities of inputs and outputs a measure of relative efficiency. The simplicity of this method makes it very appealing and it will undoubtedly be widely used. Properly understood these methods can be very helpful and our discussion will concentrate on these methods"--Introduction.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Telecommunications</marc:subfield>
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      <marc:subfield code="a">De Fontenay, Alain,</marc:subfield>
      <marc:subfield code="d">1940-2011 </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Werner, Manuel, </marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Department of Communications.</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">6.59 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/isde-ised/Co24/Co24-137-1981-eng.pdf</marc:subfield>
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