"بررسی رابطه بین ساختار شبکه تامین با کارایی تولید: رویکرد تحلیل شبکه اجتماعی و تحلیل پوششی داده ها"

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجو دکتری مدیریت صنعتی دانشگاه تربیت مدرس

2 دانشیار، گروه مدیریت صنعتی، دانشکده مدیریت و اقتصاد، دانشگاه تربیت مدرس، تهران، ایران

3 استاد، گروه مدیریت صنعتی، دانشکده مدیریت و اقتصاد، دانشگاه تربیت مدرس، تهران، ایران

چکیده

بسیاری از محصولات در شبکه‌ای از شرکت‌های به هم مرتبط تولید می شوند. از دیدگاه شبکه تامین، جایگاه نسبی شرکت‌ها در ارتباط با یکدیگر بر استراتژی و رفتار آن ها موثر است. علی رغم اهمیت چنین شبکه‌هایی کمتر درباره الگوهای ارتباطی و پیچیدگی ساختاری آن‌ها بحث شده است. رویکرد تحلیل شبکه اجتماعی یک روش مناسب برای مدلسازی و شناخت پیچیدگی‌های ساختاری چنین شبکه‌هایی است. از این رو در این مطالعه از داده‌های جمع آوری شده از روابط تامین کننده –خریدار 45 شرکت شبکه تامین فولاد ایران به منظور بررسی اثر متغیرهای مرکزیت برگرفته از تحلیل شبکه اجتماعی بر کارایی اجزای شبکه استفاده شد. در یک فرایند چند مرحله‌ای از تحلیل پوششی داده‌ها با مدل BCC ورودی محور برای اندازه‌گیری کارایی در سطح‌شرکت ها و از تحلیل شبکه اجتماعی برای محاسبه ویژگی‌های مرکزیت شبکه تامین استفاده شد. سپس با استفاده از رگرسیون پانلی با اثرات ثابت متغیرهایی که بیشترین ارتباط را با کارایی دارند، شناسایی شدند. نتایج این پژوهش نشان داد که در شبکه روابط لجستیکی، مرکزیت درون درجه‌ای و بینابینی با کارایی رابطه مستقیم و مرکزیت برون درجه‌ای با آن رابطه معکوس دارند. همچنین، در شبکه روابط قرادادی نیز مرکزیت درجه رابطه مستقیم و مرکزیت بردارویژه رابطه معکوس با کارایی دارد.

کلیدواژه‌ها

عنوان مقاله [English]

"Investigating the relationship between supply network structure and production efficiency: social network analysis and data envelopment analysis"

نویسندگان [English]

  • mahin sabet sarvestani 1
  • Abbas Moghbel BaArz 2
  • adel azar 3
1 phd student, industrial management, tarbiat modares university
2 Associate Professor
3 Professor, Department of Industrial Management, Faculty of Management & Economics, Tarbiat Modares University, Tehran, Iran
چکیده [English]

Many products are produced in networks of firms connected to each other by transactions. From a supply network perspective, the relative position of individual firms with respect to one another affects both strategy and behavior. Despite the importance of such networks little is known about relationship patterns and structural complexity of them. Social network analysis (SNA) approach is a proper method for modelling and understanding structural attributes of such networks. Hence, this study identifies those centrality measures of SNA highly related with supply network efficiency, using buyer-supplier relationship data collected from 45 steel companies in Iran. In a multistage procedure, a DEA model (BCC-input oriented) is used to calculate firm level efficiencies and SNA is applied to measure centrality metrics in supply network. Then, these variables are applied in data panel regression with constant effects to identify those variables most relevant to productive efficiency. The results indicated productive efficiency has positive association with in- degree and betweenness centrality and negative association with out-degree centrality in logistic flow network. Also, in the contractual relationship network, productive efficiency has positive association with degree centrality and negative association with eigenvector Researches in the literature have confirmed although not without exceptions

کلیدواژه‌ها [English]

  • Supply network structure
  • Social network analysis (SNA)
  • Data envelopment analysis (DEA)
  • Steel industry
  • Productive efficiency

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پژوهش های نوین در تصمیم گیری
دوره 4، شماره 2
شهریور 1398
صفحه 175-197

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