English  |  正體中文  |  简体中文  |  Post-Print筆數 : 27 |  Items with full text/Total items : 111300/142216 (78%)
Visitors : 48315930      Online Users : 411
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/77320


    Title: 新事業發展與動態能力建構-以明基材料為例
    A Case Study on the New Business Development and Formulation of Dynamic Capablities
    Authors: 陳弘鈞
    Chen, Hung Chun
    Contributors: 邱奕嘉
    Chiu, Yi Chia
    陳弘鈞
    Chen, Hung Chun
    Keywords: 新事業發展
    外部合作
    組織變革
    動態能力
    New Business Development
    External Collaboration
    Organizational Transformation
    Dynamic Capability
    Date: 2015
    Issue Date: 2015-08-03 13:44:45 (UTC+8)
    Abstract: 當企業面臨內部的規模與範疇擴張及外部的市場需求轉變時,在本業中的成長機會將日漸減少。因此,如何透過開創新事業來回應這些挑戰,往往是企業成長的重要課題。在推動新事業的過程中,如何調整組織架構,並從中萃取出深層的動態能力,以因應後續一波波的環境考驗、持續運用於下一個新事業,更是企業存亡的關鍵。然而,新事業的外部力量、內部變革、及動態能力形成的連結並未被過往研究有效建立。有鑑於此,本研究以明基材料為主軸,探討企業如何在引入外部合作下建構動態能力,並持續演進以因應外部挑戰。

    明基材料由光碟事業起家,回應明基友達集團的面板原料需求,而發展偏光片事業。建立起深厚的技術與人才布局後,明基材歷經了偏光片的跌價趨勢及材質瓶頸,進而在金融海嘯後投入成長穩定的生醫產業。在生醫事業中所建構的堅實品牌與通路,更成為明基材後續投入隱形眼鏡事業的動能與後盾、進軍全球市場。本研究依光碟、偏光片、生醫、及隱形眼鏡四大階段作為產業及事業探討的架構,以解構出中每個新事業發展事件背後蘊藏的動態能力基礎。

    本研究發現:在導入外部合作模式的情形下,動態能力的養成更能突破內部創新的限制及盲點。在引入垂直或水平的外部力量後,更須將力量挹注到組織內部,在結構、技術、任務、或人員等構面產生變革,方能進一步產生市場預測、技術製程、人才匯流、通路後勤、品牌行銷、及技術互補能力等六大動態能力。在早期的光碟及偏光片事業中,明基材倚重集團的垂直支援,養成了技術製程、技術互補、與人才能力,強調內部定位並掌握動、靜態程序,具有高度路徑相依性。於近期的生醫及隱形眼鏡事業中,明基材則更重視異業水平合作,更完整了品牌行銷、通路後勤、與市場預測能力,著重外部定位並協調動、靜態程序,更彈性掌握技術機會。透過動態能力在定位、程序、及路徑的持續演進,企業方能一次次化解產業危機,在新事業中穩健發展、開創新局。
    When confronted with internal expansion of scale and scope as well as external alteration of market demands, enterprises are bound to face fewer and fewer opportunities of growth in their original businesses. Hence, how to cultivate new businesses in reply to these challenges is usually a crucial issue for enterprise growth. In the process of new business development, the survival of the enterprise lies in the way of modulating organizational framework and extracting profound, dynamic capabilities therein to tackle subsequent environmental trials as well as to exert them on the next new business. Nonetheless, the connection among external strengths, internal organizational transformations, and the formulation of dynamic capabilities wasn’t effectively established in prior research. Accordingly, this study is rooted upon the case study of BenQ Materials Corp. in the aim of looking into how enterprises incorporate external collaborations to construct their dynamic capabilities, which can constantly evolve to cater to external challenges.

    BenQ Materials was initiated as a disc manufacturer, while differentiating into the polarizer business in response to the demand for panels of the BenQ Group. While establishing solid technical and personnel allocations, BenQ Materials underwent the price-declining trend and bottlenecks in textures, which make it in turn resort to the steadily growing biomedical industry after the financial tsunami. The robust channels and brands built in the biomedical business not only served as the backing and momentum, but further steering BenQ Materials into the contact lens industry and global markets. This thesis classifies both the industry and business analysis into four categories: discs, polarizers, biomedicine, and contact lens, which helps dissect every new business incident, excavate the foundation of dynamic capabilities behind.

    Throughout the research, this study reveals that under the introduction of external collaborations, the formulation of dynamic capabilities can further break though the blind spots and limits from internal innovations. After importing vertical or horizontal external forces, enterprises should then translate the external forces into internal organization changes in the aspects of the structure, techniques, tasks, and personnel, giving rise to the six dynamic capabilities: market predicting, technique procedural, talent streaming, channel logistical, brand marketing, and technique complementary capability. In the disc and polarizer business, BenQ Materials depended heavily on the vertical support from the BenQ Group and generated the technique procedural, technique complementary, and talent streaming capability, laying emphasis on internal positioning, dynamic and static processes, and high-level path dependency. While in biomedical and contact lens business, BenQ Materials further treasured inter-industry horizontal cooperation, from which the brand marketing, channel logistical, and more comprehensive market predicting capability were nurtured, valuing external positioning, dynamic and static processes coordinating, and elastic technological opportunity managing. The consecutive evolution of dynamic capabilities on positions, processes, and paths not only facilitates enterprises to get through industry crises time after time, but fuels new businesses’ sturdy growth and innovation.
    Reference: 一、中文部分
    1. Mehrdad Baghai, Stenphen Coley, and David White (1999),林小慧譯,《企業成長煉金術》,台北:時報出版
    2. 王友民、張宏榮 (2007),《動態能力與市場導向之構成因素比較》,2007 全球化暨國際企業研討會論文集。
    3. 汪家禎 (2012),《飯店業集團策略聯盟經營方式之探討-以喜達屋集團為例》,國立中山大學企業管理學系碩士論文。
    4. 吳珮甄 (2005),《由動態能力觀點分析企業協同凝聚:以復盛集團成長策略為例》,中原大學企業管理學系碩士論文。
    5. 施沛華 (2004),《能耐基礎成長與垂直鏈佈局關係之研究-以台灣TFT-LCD產業為例》,中原大學企業管理學系碩士論文。
    6. 侯嘉政、陳宜伸、張宏榮 (2010),《企業動態能力、組織變革策略與組織變革績效之探索性研究》, 經營管理論叢, 6 (1), 23-47
    7. 張永昇 (1993),《組織內部創業活動之研究》,國立中央大學企業管理所碩士論文
    8. 葉家馨 (2006),《組織變革中員工預期不確定認知對變革態度影響之研究—以經濟部為例》,銘傳大學公共事務學系碩士論文。
    9. 鍾依芳 (2005),《策略聯盟宣告對公司價值的影響》,國立中山大學企業管理學系碩士論文。
    10. 韓燕甯 (2007),《從開放式創新觀點探討NTT DoCoMo平台型經營模式》,國立政治大學企業管理研究所碩士論文。

    二、英文部分
    1. Ander and Helfat (2003). Corporate Effects and Dynamic Managerial Capabilities. Strategic Management Journal, 24, 1022.
    2. Bierly, P.E. and Chakrabarti, A.K.(1996). Technological Learning, Strategic Flexibility, and New Product Development in the Pharmaceutical Industry. IEEE Transactions on Engineering Management, 43, 368-380.
    3. Block, Z. and Subbanarasimha, P.N. (1989). Corporate Venturing:Practices and Performance in the U.S. and Japan. Working paper of Center for Entrepreneurial Studies, Stern School of Business, New York University.
    4. Block, Z. and MacMillan, I.C. (1995). Corporate Venturing:Creating New Businesses within the Firm. Boston, MA. Harvard Business School Press.
    5. Buono, A.F. and Bowditch, J.L. (1989). The Human Side of Mergers and Acquisitions. San Francisco: Jossey-Bass
    6. Burgelman, R.A. (1984). Designs of Corporate Entrepreneurship in Established Firm. California Management Review, 3, Spring.
    7. Burgelman, R.A. and Maidique, M.A. (1988). Strategic Management of Technology and Innovation. Homewood, Illinois.
    8. Burke and Litwin (1992). A Causal Model of Organisation Performance and Change. Journal of Management, 18 (3), 523–545.
    9. Chesbrough, H.W. and Teece, D.J. (2002). Organizing for Innovation:When Is Virtual Virtuous? MA:Harvard Business Review.
    10. Chan, S.H., Kensinger, J.W., Keown, A.J., and Martin, J.D. (1997). Do Strategic Alliances Create Value? Journal of Financial Economics, 46, 199-221.
    11. Chathoth, P.K. and Heiman, B. (2004). Governance Costs in Alliances: Combining the Evolutionary and Transaction Cost Economics Views. Proceedings of the International Business and Economy Conference, Jan 8–11 2004.
    12. Chesbrough, H. (2003). Open Innovations: The New Imperative for Creating and Profiting from Technology. Harvard Business School Press.
    13. Chesbrough, H., Vanhaverbeke, W., and West, J. (2006). Open Innovation: Researching a New Paradigm. Oxford University Press.
    14. Chesbrough, H. and Schwartz, K. (2007). Innovating Business Models with
    Co-Development Partnerships. Research-Technology Management, 50 (1), 55-59.
    15. Child, J. and Faulkner, D. (1998). Strategies of Cooperation: Managing Alliances, Networks, and Joint Ventures. New York: Oxford University Press.
    16. Christensen, C.M., Raynor, and Michael, E. (2003). The Innovator`s Solution:Creating and Sustaining Successful Growth. NY:Harvard Business Review.
    17. Conner, K.R. and Prahalad, C.K. (1996). A Resource-based Theory of the Firm: Knowledge versus Opportunism. Organization Science, 7, 477-501.
    18. Das, S., Sen, P. K., and Sengupta, S. (1998). Impact of Strategic Alliances on Firm Valuation. Academic of Management Journal, 41 (1), 27-41.
    19. Delvin, G. & Bleackley, M. (1988). Strategic Alliance Guidelines for Success. Long Range Planning, 21 (5), 18-23.
    20. Dessler (1980). Organization and Management: Contingency Approach. Englewood Geiff, NJ: Prentice-Hall.
    21. Downey, H.K., and Slocum, J.W. (1975). Uncertainty: Measures, Research and Sources of Variation. Academy of Management Journal, 18, 562-577.
    22. Dyer, J.H. and Singh, H. (1998) Relational View: Cooperative Strategy and Sources of Interorganizational Competitive Advantage. Academy of Management Review, 23 (4), 660–679.
    23. Eisenhardt, K.M. (1989). Building Theories from Case Study Research. Academy of Management Review, 14 (4), 532-550.
    24. Eisenhardt, K. and Schoonhoven, C.B. (1996). Strategic Alliance Formation in Entrepreneurial Firms: Strategic Needs and Social Opportunities for Cooperation. Organization Science, 7, 136-150.
    25. Eisenhardt, K. and Martin, J. (2000). Dynamic Capability: What Are They? Strategic Management Journal, 21, 1105-1121.
    26. Erin, C., Seggie, S.H., and Mehmet. B.T. (2007). Dynamic Capabilities View: Foundations and Research Agenda. Journal of Marketing Theory and Practice, 15 (2), 159.
    27. Freeman, C. (1982) The Economics of Industrial Innovation. London: Pinter, 2nd ed., 66.
    28. Govindarajan, V. and Trimble, C. (2005). Building Breakthough Businesses Within Established Organizations. Harvard Business Review, 9955, 1-12.
    29. Hagedoorn, G. and Schakenraad, J. (1994). The Effect of Strategic Technology Alliances on Company Performance. Strategic Management Journal, 15, 291-309.
    30. Hamel, G., Doz, Y.L., and Prahalad, C.K. (1989). Collaborate with Your Competitiors and Win. Harvard Business Review.
    31. Hamel, G. (1991). Competition for Competence and Inter-Partner Learning within International Strategic Alliances. Strategic Management Journal, 12, 83-103.
    32. Hart, O. and Moore, J. (1990). Property Rights and the Nature of the Firm. Journal of Political Economy, 98, 1119-1158.
    33. Harvey, D.F. and Brown, D.R. (1988). An Experimental Approach to Organization Development. San Francisco: Prentice Hall.
    34. Helfat, C.E. (1997). Knowhow and Asset Complementarily and Dynamic Capability Accumulation:The Case of R&D. Strategic Management Journal. 18 (5), 339~360.
    35. Helfat, C.E. and Peteraf M.A. (2003). The Dynamic Resource-Based View: Capability Lifecycles. Strategic Management Journal, 24, 997-1010.
    36. Hitt, M.A., Dacin, T.M., Levitas, E. et al. (2000). Partner Selection in Emerging and Developed Market Contexts: Resource-Based and Organizational Learning Perspectives. Academy of Management Journal, 43, 449–467.
    37. Hobman, E., Jones, E., and Callan, V. (2004). Uncertainty during Organizational Change: Types, Consequences, and Management Strategies. Journal of Business and Psychology, 18 (4), 507-532.
    38. Hofer and Schendel (1978). Strategy Formulation Analytical Concepts, West Publishing Co.
    39. Hui, C. and Lee, C. (2000). Moderating Effects of Organization-Based Self-Esteem on Organizational Uncertainty: Employee Response Relationships. Journal of Management, 2, 215-232.
    40. James, B. (1985). Alliance: The new strategic focus. Long Range Planning, 18 (3), 76-81.
    41. Jick, T.D. (1993), Managing Change. Boston: Richard D. IRWIN, Inc.
    42. Kahn, R.L., Wolfe, D.M., Quinn, R.P., Snoek, J.D., and Rosenthal, R.A. (1964), Organizational Stress: Studies in Role Conflict and Ambiguity. New York: Wiley.
    43. Kale, P., Singh, H., and Perlmutter, H. (2000). Learning and Protection of Proprietary Assets in Strategic Alliances: Building Relational Capital. Strategic Management Journal, 21, 217–237.
    44. Kazanjian, R.K. and Drazin, R. (1990). A Stage -Contingent Model of Design and Growth for Technology Based New Ventures. Journal of Business Venturing, 5, 137-150.
    45. Kotter, J.P. (1995). Leading Change- Why Transformation Efforts Fail. Harvard Business Review, 73 (2),59-67.
    46. Killing, J.P. (1983). How to Make a Global Joint Venture Work. Harvard Business Review, 60 (3), 120-127.
    47. Lant, T.K. and Mezias, S.J. (1992). An Organizational Learning Model of Convergence and Reorientation. Organization Science, 3 (1), 47-71.
    48. Lavy A. and Merry U. (1988). Organizational Transformation: Revitalizing Organization for a Competitive World. Jessey-Bass Inc.
    49. Leavitt, H.J. (1964). Applied Organization Change in Industry: Structure, Technical and Human Approaches, New Perspective in Organization Research. Chicago: Rand McNally.
    50. Leonard-Barton, D. (1995). Well Springs of Knowledge. Harvard Business School Press, Boston.
    51. Lewin, K (1947). Frontiers in Group Dynamics: Concept, Method, and Reality in Social Science: Social Equilibria and Social Change. Human Relations, 1, 5-41.
    52. Lundberg, C.C. (1984). Strategies for Organizational Transitioning. Kimberly and Quinn. Managing.
    53. Luo, Y. (2000). Dynamic Capabilities in International Expansion. Journal of World Business, 35 (4), 355-378.
    54. Miller and Danny. (1983). The Correlates of Entrepreneurship in Three Types of Firms. Management Science, 29(7), 770-791
    55. Moller and Svahn (2003). Managing Strategic Nets: A Capability Perspective. Marketing Theory, London, 3 (2), 209.
    56. Ohmae, K. (1989). The Global Logic of Strategic Alliances. Harvard Business Review, 67, 143-154.
    57. O’Neil, J. (1995). Four Lenses through which to View a Learning Organization. ASTD.
    58. Parkhe, A. (1993). Strategic Alliance Structuring: A Game Theoretic and Transaction Cost Examination of Interfirm Cooperation. Academy of Management Journal, 36, 794–829.
    59. Pavlos (2004). IT-Enabled Dynamic Capabilities in the New Product Development: Building a Competitive Advantage in the Turbulent Environments. University of Southern California, 183.
    60. Porter, M.E. and Fuller, M.B. (1986). Coalitions and global strategy. Competition in Global Industries. Boston: Harvard Business School Press, 315–344.
    61. Robbins and Steven P. (1990). Organization Theory:Structure, Design, and Applications. Prentice-Hall International,Inc.
    62. Roberts, E.B. and Berry, C.A. (1985). Entering New Business :Selecting Strategies for Success. Sloan Management Review, 3-17.
    63. Robbins, S.P. (2001). Organizational Behavior, 9th ed., Upper Saddle River, N. J.,Prentice Hall: 567.
    64. Ron, S. (2004). Understanding Competence-Based Management: Identifying and Managing Five Modes of Competence. Journal of Business Research, 57 (5), 518-532.
    65. Shan, P., Gary, P., and Hsieh, M.H. (2006). Journal of the American Society for Information Science and Technology, Hoboken: 57 (13), 1814.
    66. Simonin, B. (1997). The Importance of Developing Collaborative Knowhow: an Empirical Test of the Learning Organization. Academy of Management Journal, 40 (5), 1150-1174.
    67. Steers, R.M., Ungson, G.R., and Mowday, R.T. (1985). Managing Effective Organizations: An Introduction. Boston, Mass.: Kent Pub.Co.
    68. Stevenson, H.H. and Jarillo, J.C. (1990). Preserving Entrepreneurship as Companies Grow. Journal of Business Strategy, 6, 10-23.
    69. Teece, D.J. (1994). The Dynamic Capabilities of Firms: An Introduction. Industrial and Corporate Change, 5 (3), 537-556.
    70. Teece, D.J., Pisano, G., and Shuen, A. (1997) Dynamic Capabilities and Strategic Management. Strategic Management Journal, 18, 509-533.
    71. Tichy, N.M. and Ulrich, D.O. (1984). The Leadership Challenge – A Call for the Transformational Leader. Classical Readings of Organizational Behavior. Thomson-Wadsworth,Belmont, CA, 2008.
    72. Van de Ven, A.H., Hudson, R., and Schroeder, D.R. (1984). Designing New Usiness Start-ups:Entrepreneurial, Organizational and Ecological Considerations. Journal of Management, 10, 89-107
    73. Volberda, H.W., de Boer, M., and Bosch, F.A.J. (1999). Managing Organizational Knowledge Integration in the Emerging Multimedia Complex. Journal of Management Studies, 36 (3), 379-398.
    74. Weber, K. and Chathoth, P.K. (2008) Strategic Alliances. Handbook of Hospitality Marketing Management, 501-523, Oxford: Butterworth-Heinemann.
    75. Williamson, O. and Ouchi, W.G. (1981). The Markets, Hierarchies, and the Visible Hand Perspectives. Perspectives on Organization Design and Behavior, 347-370.
    76. Yoshino, M. and Rangan, U.S. (1995). Strategic Alliance: An Entrepreneurial Approach to Globalisation. Boston: Harvard Business School Press.
    77. Zott, C. (2003). Dynamic Capabilities and the Emergence of Intra-Industry Differential Firm Performance: Insights from a Simulation Study. Strategic Management Journal, 24, 97-125.

    三、訪談資料與網站資訊:
    1. 2014年8月15日與明基材料游克用前董事長於明基材料桃園龜山總部的訪談記錄。
    2. 2014年8月18日與明基材料陳建志董事長、林恬宇總經理於明基材料桃園龜山總部的訪談記錄。
    3. DisplaySearch, Breakdown changes of panel costs toward large-size trend, Nov. 2004.
    4. IHS DisplayBank之2012市場調查報告,http://www.eettaiwan.com/ ART_8800670704_480702_NT_ e0554b46.htm (Sep. 18, 2014).
    5. PIDA,全球光儲存市場與台灣產業,2010
    6. 中國偏光片行業發展現狀及市場分析,2012,
    http://blog.sina.com.cn/u/3481817544 (Sep. 18, 2014).
    7. 工研院IEK,張慈映,生技醫療器材產業趨勢與商機,2012 http://www.instrument.org.tw/archive/101082401.pdf (Sep. 18, 2014).
    8. 工研院IEK,葉仰哲,韓國偏光片及材料發展現況,Jan. 26, 2007,http://ieknet.iek.org.tw/BookView.do?rptidno=94AD548D961C257C4825726F000D8BB1 (Sep. 18, 2014).
    9. 林道燊,隱形眼鏡產業發展概況,Aug. 2008.
    10. 林宏文,電子業搶賣隱形眼鏡 禍福難測,今周刊第875期,Sep. 26, 2013
    11. 明基材料網站,醫護產品簡介,http://www.benqmaterials.com/chinese/ 01_products/pro_detail.aspx?pid=4 (Sep. 18, 2014).
    12. 財報狗網站,隱形眼鏡產業分析-精華vs金可,Apr. 2, 2014,http://statementdog.com/blog/archives/7279 (Sep. 18, 2014).
    13. 溫哥華台灣貿易中心,加國工業局貿易統計資料,Mar. 2014.
    14. 經濟部技術處,ITIS計畫,陳婉玲,淺談當今先進敷料之抗菌敷料市場趨勢,Sep. 28, 2012.
    15. 經濟部技術處,ITIS計畫,金屬中心MII,陳郁文,台灣先進傷口照護市場面面觀,Dec. 21, 2011.
    16. 經濟部技術處,ITIS計畫,黃博偉,傷口護理市場分析,Oct. 11, 2006.
    17. 經濟部技術處,ITIS計畫,馬煌展,台灣醫療展器材產業的隱憂, Dec. 31, 2013.
    18. 經濟部技術處,ITIS計畫,葉仰哲,LCD偏光板市場與廠商動態回顧,Oct. 3, 2013.
    19. 經濟部技術處,資策會產業情報研究所,鍾曉君,全球數位電視浪潮下之創新商業模式暨新興商品商機,2009
    新竹生物科學園區,台灣潛力品項 – 隱形眼鏡市場發展分析,June. 5, 2014,http://www.hbmsp.sipa.gov.tw:9090/itri/tw/images/NewsList1030605_02.htm (Sep. 18, 2014).
    20. 資策會MIC,楊仲瑜,台日韓軟性顯示技術發展現況,Jan. 31, 2011,http://mic.iii.org.tw/aisp/reports/reportdetail_register.asp?docid=2929&rtype=freereport(Sep. 18, 2014)
    21. 電子工程專輯EET,薄型化需求帶動 壓克力薄膜在偏光片市場佔比漸增,July 13, 2012
    22.《遠見雜誌》,江逸之,光碟產業突圍而出, 2003年7月號第205期
    23. 劉常勇,光碟機王國的期待,1996
    24. 寶來證券,偏光板產業概況之評論,Jan. 8, 2003,http://www.moneydj.com/report/zd/zdc/zdcz/ zdcz_9F1DB5C8-0117-440C-8DB1-E1538867838.djhtm (Sep. 18, 2014)
    Description: 碩士
    國立政治大學
    科技管理與智慧財產研究所
    102364212
    Source URI: http://thesis.lib.nccu.edu.tw/record/#G0102364212
    Data Type: thesis
    Appears in Collections:[科技管理與智慧財產研究所] 學位論文

    Files in This Item:

    File SizeFormat
    421201.pdf11240KbAdobe PDF21041View/Open


    All items in 政大典藏 are protected by copyright, with all rights reserved.


    社群 sharing

    著作權政策宣告 Copyright Announcement
    1.本網站之數位內容為國立政治大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,惟仍請適度,合理使用本網站之內容,以尊重著作權人之權益。商業上之利用,則請先取得著作權人之授權。
    The digital content of this website is part of National Chengchi University Institutional Repository. It provides free access to academic research and public education for non-commercial use. Please utilize it in a proper and reasonable manner and respect the rights of copyright owners. For commercial use, please obtain authorization from the copyright owner in advance.

    2.本網站之製作,已盡力防止侵害著作權人之權益,如仍發現本網站之數位內容有侵害著作權人權益情事者,請權利人通知本網站維護人員(nccur@nccu.edu.tw),維護人員將立即採取移除該數位著作等補救措施。
    NCCU Institutional Repository is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff(nccur@nccu.edu.tw). We will remove the work from the repository and investigate your claim.
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback