MELAMPAUI JUST-IN-TIME DAN JUST-IN-CASE: PENYEIMBANGAN DINAMIS ANTARA EFISIENSI DAN REDUNDANSI DALAM DISRUPSI RANTAI PASOK: STUDI KASUS TUNGGAL LONGITUDINAL BERORIENTASI ELABORASI TEORI PADA PT. X

Inang Suryani; Miranda Miranda; Imelda Zeni Susanti

doi:10.59003/nhj.v6i2.2338

Authors

Inang Suryani Universitas Mercubaktijaya
Miranda Miranda Universitas Mercubaktijaya
Imelda Zeni Susanti Universitas Mercubaktijaya

DOI:

https://doi.org/10.59003/nhj.v6i2.2338

Keywords:

supply chain resilience, inventory management, redundancy, dynamic rebalancing, theory elaboration

Abstract

Supply chain disruptions have exposed the limits of treating efficiency and redundancy as mutually exclusive operating choices. This study examines how PT. X adjusted the balance between these two logics across periods of stability, disruption, response, and recovery during 2020–2024. A longitudinal theory-elaborating single-case design was applied to verified secondary case evidence. The analysis combined evidence classification, temporal bracketing, within-case process tracing, pattern matching, and rival-explanation assessment. The strongest disruption occurred in 2021: export realization reached only 1,200 tons against a 2,500-ton target, while DIO rose from a pre-spike average of about 45 to 75 days. The findings distinguish involuntary inventory accumulation from deliberate redundancy and show a gradual shift toward logistics coordination, tighter monitoring, DIO control, and digitalization. The study proposes a provisional Dynamic Efficiency–Redundancy Rebalancing Framework rather than a validated causal switching model.

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