Penerapan Model Multi-Product Newsvendor Problem Untuk Memaksimalkan Ekspektasi Keuntungan Toko Roti X

Authors

DOI:

https://doi.org/10.26593/jrsi.v10i2.5135.201-210

Keywords:

multi-product, newsvendor problem, stochastic inventory model, profit

Abstract

Bakery shop X sells its products using its car which operate in Bandung District area. The problem which faced by bakery shop X is the high percentage of leftover bread that is not sold out. Although some of breads can be resold, there has been a drastic decline in the appearance and the quality of the leftover breads. Bread which has a diminishing value in appearance and quality is sold with the lower price which result in decrease in profit. This research using multi-product newsvendor problem to determine how much every kind of breads must be produced in each day so that the profit expectation can be maximized and will indirectly minimize the amount of remaining breads. This research will applied that the bread which allowed to sold is the bread which produced in 1 day so that the customer do not get the unfresh bread. The result of the implementation of the model through simulation shows a decrease in the percentage of leftover bread in the majority of breads based on the demand data of 1 week and higher profit expectations are obtained.

Author Biography

Fran Setiawan, Universitas Katolik Parahyangan

Industrial Engineering Department, Universitas Katolik Parahyangan

References

Birge J.R. & Louveaux, F. (2011). Introduction to Stochastic Programming. (2nd ed.). New York: Springer.

Choi, T.M. (Eds.). (2012). Handbook of Newsvendor problems: Model, Extensions and Applications (International Series in Operations Research & Management Science, Vol 176). New York: Springer.

Janaldo, W. (2017). Perencanaan Produksi Makanan Jadi Pada Unit Usaha Makanan Coop Space Unpar untuk Mengurangi Ongkos Total. Skripsi Jurusan Teknik Industri. Bandung: Universitas Katolik Parahyangan.

Putri A. S. (2019). Peran UMKM dalam Perekonomian Indonesia, [Online], Diakses dar: https://www.kompas.com/skola/read/2019/12/20/120000469/peran-umkm-dalam-perekonomian-indonesia?page=all [2020, 2 Februari].

Qin, Y., Wang, R., Vakharia, A.J., Chen, Y., & Seref, M.M.H. (2011). The Newsvendor problem: Review and Direction for Future Research. European Journal of Operational Research, 213, 361-374.

Setiawan, F., Ariningsih, P.K., & Widya, S. (2018). Usulan Model Robust Newsvendor problem untuk Multi Produk dan Mempertimbangkan Permintaan Diskrit (Studi Kasus: Toko Roti X di Bandung). Performa: Media Ilmiah Teknik Industri, 17 (1): 78-87.

Turken, N., Tan, Y., Vakharia, A.J., Wang, L., Wang, R. & Yenipazarli, A. (2012). The Multi-product newsvendor problem: Review, Extensions, and Direction for Future Research. Dalam T.M. Choi (Eds.), Handbook of Newsvendor problems: Model, Extensions and Applications. New York: Springer.

Winston, W. L. (1994). Operations Research Applications and Algorithms (3rd ed.). California: Wadsworth Publishing Company.

Zhai, J., Yu, H. & Sun, C. (2018). Robust Optimization for the Newsvendor problem with Discrete Demand. Mathematical Problems in Engineering, 9(07), 1-12.

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Published

2021-10-29