Supply Chain Strategy to Improve Performance of Dependent Parties under Asymmetric Relationships

Alrosjid, Shovella Santy (2023) Supply Chain Strategy to Improve Performance of Dependent Parties under Asymmetric Relationships. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Hubungan asimetris ada dalam rantai pasok. Tingkat ketergantungan yang berbeda dalam suatu hubungan menyebabkan adanya mitra yang lebih tergantung dan dominan dalam suatu kemitraan rantai pasok. Literatur mengatakan bahwa hubungan asimetris menimbulkan dampak negatif pada kinerja mitra tergantung jika tidak dikelola dengan baik. Perencanaan taktis diperlukan dalam situasi ini karena memerlukan perubahan minimal dalam perilaku mitra dan desain jaringan. Sementara akademisi telah memberikan banyak perhatian pada hubungan asimetris, sangat sedikit karya yang membahas tingkat taktis dari hubungan asimetris. Selain itu, tidak ada studi yang meneliti detail perencanaan taktis rantai pasok dari mitra yang tergantung dalam situasi hubungan asimetris. Penelitian ini mencoba menjawab apa dan bagaimana faktor taktis rantai pasok mempengaruhi kinerja rantai pasok dalam hubungan asimetris. Serangkaian metodologi telah digunakan dalam penelitian ini, yaitu membentuk kerangka konseptual melalui tinjauan literatur yang luas, melakukan penelitian studi kasus, dan pemodelan simulasi. Pertama, kerangka hubungan asimetris dikembangkan sebagai panduan untuk melakukan studi empiris. Pendekatan studi kasus digunakan untuk memvalidasi kerangka serta membawa wawasan dunia nyata untuk memperkaya kerangka. Empat perusahaan dipilih sebagai perusahaan kasus. Berbagai strategi taktis diidentifikasi melalui studi kasus. Akhirnya, untuk mengeksplorasi bagaimana berbagai faktor tersebut mempengaruhi kinerja pihak-pihak yang bergantung pada hubungan rantai pasok yang asimetris, descrete-event simulation dilakukan untuk berbagai skenario. Ada beberapa temuan penting dari penelitian ini. Pertama, jelas bahwa, dalam hubungan asimetris, perusahaan yang bergantung cenderung menerapkan strategi taktis reaktif daripada antisipatif. Namun, strategi reaktif, dalam bentuk buffering dan memungkinkan seringnya perubahan jadwal, hanya meningkatkan tingkat layanan tetapi bukan efisiensi biaya. Sebaliknya, visibilitas yang lebih baik pada permintaan pelanggan, seperti pagar waktu beku yang lebih lama, merupakan faktor paling signifikan yang dapat digunakan untuk meningkatkan laba. Penelitian ini juga menganjurkan perlunya mengeksplorasi strategi di luar keputusan taktis, seperti kolaborasi rantai pasok yang lebih baik. Meskipun ini mungkin tidak mudah dalam hubungan asimetris, studi simulasi menunjukkan peningkatan signifikan dalam tingkat layanan dan keuntungan ketika strategi buffering dan antisipatif, seperti pendekatan kolaboratif dengan mitra, digabungkan.
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An asymmetric relationship exists in the supply chain. A different level of dependency in a relationship causes the presence of more dependent and dominant partners in a supply chain partnership. The literature says that asymmetric relationships evoke negative impacts on the performance of dependent partners if it is not managed properly. Tactical planning is required in this situation because it requires a minimum change in partners' behaviors and network design. While academics have given much attention to asymmetric relationships, very few works have discussed the tactical level of asymmetric relationships. Moreover, there is no work to scrutinize the detail of supply chain tactical planning of dependent partners in the situation of asymmetric relationships. This study attempts to answer what and how supply chain tactical factors affect supply chain performance in asymmetric relationships. A set of methodologies have been used in this study, i.e., forming a conceptual framework through extensive literature review, conducting case study research, and simulation modeling. A framework of asymmetric relationships is first developed as a guide for conducting the empirical study. The case study approach is used to validate the framework as well as to bring real-world insights to enrich the framework. Four companies were selected as case companies. Various tactical strategies were identified through the case study. Finally, to explore how those various factors affect performance of dependent parties in asymmetric supply chain relationships, a discrete event simulation was conducted under various scenarios. There are a number of important findings from this research. First, it was obvious that, in asymmetric relationships, dependent companies tend to implement reactive rather than anticipative tactical strategies. However, reactive strategies, in the form of buffering and allowing frequent schedule changes, merely improve service levels but not cost efficiency. Instead, better visibility on customers’ demand, such as a longer frozen time fence, is the most significant factor that can be used to improve profit. This research also advocates the need to explore strategies beyond tactical decisions, such as better supply chain collaboration. Even though this might not be easy in asymmetric relationships, the simulation study indicated significant improvement in service levels and profit when both buffering and anticipative strategies, such as a collaborative approach with partners, are combined.

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	asymmetric relationship, supply chain tactical strategy, conceptual framework, case study, simulation modeling, hubungan asimetris, strategi taktis rantai pasok, kerangka konseptual, studi kasus, pemodelan simulasi
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD38.5 Business logistics--Cost effectiveness. Supply chain management. ERP
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26001-(S3) PhD Thesis
Depositing User:	Shovella Santy Alrosjid
Date Deposited:	02 Feb 2023 02:41
Last Modified:	02 Feb 2023 02:41
URI:	http://repository.its.ac.id/id/eprint/96024

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