Model Pengembangan Kebijakan Inventori Joint Replenishment untuk Multi Produk dengan Mempertimbangkan Produk Substitusi
DOI:
https://doi.org/10.56799/jim.v2i8.1963Keywords:
Joint Replenishment, Substitusi, Probabilistik, Consumer goodsAbstract
Pendekatan joint replenishment merupakan salah satu metode yang digunakan dalam melakukan replenishment inventori. Dengan joint replenisment. Dengan joint replenishment biaya pesan dapat diminimasi karena hanya menggunakan satu kali pengiriman untuk beberapa produk sekaligus. Contoh proses replenishment inventori yang menggunakan pendekatan ini adalah pada retailer maupun toko grosir dengan jenis produk consumer goods. Ciri dari pasar consumer goods adalah adanya kemungkinan pemenuhan demand dengan produk lain yang sejenis, sehingga dapat dikatakan produk tersebut dapat saling mensubstitusi. Selain itu, terdapat kesulitan dalam proses replenishment produk jenis ini yaitu adanya ketidakpastian demand dari sisi customer. Penelitian ini mengembangkan model inventori Maddah, dkk (2016) mengenai model joint replenishment dengan mempertimbangkan substitusi produk. Pada penelitian ini, digunakan demand dengan sifat probabilistic. Service level telah ditetapkan sebelumnya oleh perusahaan (probabilistic sederhana). Ukuran kinerja yang diperhatikan adalah meminimasi ongkos total yang terdiri dari ongkos pembelian, ongkos pemesanan, ongkos penyimpanan, dan ongkos kekurangan. Berdasarkan uji coba model, didapati hasil bahwa model joint replenishment dengan substitusi memberikan ongkos total lebih rendah dibandingkan tanpa substitusi. Selain itu, model tersebut juga sensitif terhadap perubahan harga dan perubahan ongkos simpan.
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References
Andersen, E. T., Fitzsimons, G. J., & Simester, D. (2006). Measuring and mitigating the costs of stockouts. Management Science, 52(11), 1751–1763. https://doi.org/10.1287/mnsc.1060.0577
Bastos, L. dos S. L., Mendes, M. L., Nunes, D. R. de L., Melo, A. C. S., & Carneiro, M. P. (2017). A systematic literature review on the joint replenishment problem solutions: 2006-2015. Production, 27(2008), 2006–2015. https://doi.org/10.1590/0103-6513.222916
Derhami, S., Montreuil, B., & Bau, G. (2021). Assessing product availability in omnichannel retail networks in the presence of on-demand inventory transshipment and product substitution. Omega (United Kingdom), 102(xxxx), 102315. https://doi.org/10.1016/j.omega.2020.102315
Gurnanil, H., & Drezner, Z. (2000). Deterministic hierarchical substitution inventory models. Journal of the Operational Research Society, 51(1), 129–133. https://doi.org/10.1057/palgrave.jors.2600843
Huang, L., Song, J. S., & Tong, J. (2016). Supply chain planning for random demand surges: Reactive capacity and safety stock. Manufacturing and Service Operations Management, 18(4), 509–524. https://doi.org/10.1287/msom.2016.0583
Maddah, B., Kharbeche, M., Pokharel, S., & Ghoniem, A. (2016). Joint replenishment model for multiple products with substitution. Applied Mathematical Modelling, 40(17–18), 7678–7688. https://doi.org/10.1016/j.apm.2016.03.027
Minner, S. (2012). Strategic Safety Stocks in Supply Chains. Springer Berlin Heidelberg. https://books.google.co.id/books?id=SO3vCAAAQBAJ
Salameh, M. K., Yassine, A. A., Maddah, B., & Ghaddar, L. (2014). Joint replenishment model with substitution. Applied Mathematical Modelling, 38(14), 3662–3671. https://doi.org/10.1016/j.apm.2013.12.008
Andersen, E. T., Fitzsimons, G. J., & Simester, D. (2006). Measuring and mitigating the costs of stockouts. Management Science, 52(11), 1751–1763. https://doi.org/10.1287/mnsc.1060.0577
Bastos, L. dos S. L., Mendes, M. L., Nunes, D. R. de L., Melo, A. C. S., & Carneiro, M. P. (2017). A systematic literature review on the joint replenishment problem solutions: 2006-2015. Production, 27(2008), 2006–2015. https://doi.org/10.1590/0103-6513.222916
Derhami, S., Montreuil, B., & Bau, G. (2021). Assessing product availability in omnichannel retail networks in the presence of on-demand inventory transshipment and product substitution. Omega (United Kingdom), 102(xxxx), 102315. https://doi.org/10.1016/j.omega.2020.102315
Gurnanil, H., & Drezner, Z. (2000). Deterministic hierarchical substitution inventory models. Journal of the Operational Research Society, 51(1), 129–133. https://doi.org/10.1057/palgrave.jors.2600843
Huang, L., Song, J. S., & Tong, J. (2016). Supply chain planning for random demand surges: Reactive capacity and safety stock. Manufacturing and Service Operations Management, 18(4), 509–524. https://doi.org/10.1287/msom.2016.0583
Maddah, B., Kharbeche, M., Pokharel, S., & Ghoniem, A. (2016). Joint replenishment model for multiple products with substitution. Applied Mathematical Modelling, 40(17–18), 7678–7688. https://doi.org/10.1016/j.apm.2016.03.027
Minner, S. (2012). Strategic Safety Stocks in Supply Chains. Springer Berlin Heidelberg. https://books.google.co.id/books?id=SO3vCAAAQBAJ
Salameh, M. K., Yassine, A. A., Maddah, B., & Ghaddar, L. (2014). Joint replenishment model with substitution. Applied Mathematical Modelling, 38(14), 3662–3671. https://doi.org/10.1016/j.apm.2013.12.008
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