The Impact of Lead-Time Variability on Supply Chain Operations of Retail Stores and Supermarkets in Karachi During the Pandemic Situation

Authors

  • Fatima Shahid Karachi University Business School, University of Karachi, Pakistan
  • Rohail A. Khan Business Ethics and Governance, University of Karachi, Pakistan
  • Sadia Anwar University of Punjab, Pakistan
  • Faraz A. Wajidi (Ph.D) Department of Public Administration, University of Karachi, Pakistan

DOI:

https://doi.org/10.5281/zenodo.20028813

Abstract

The retail sector plays a vital role in Pakistan's economy, with numerous retail outlets and supermarkets operating in Karachi and across the country. Karachi's retail landscape is diverse, featuring many grocery stores and supermarkets that serve both local and international modern trade. This study examines how lead-time variability impacts supply chain operations in supermarkets and grocery stores in Karachi, particularly in the context of the challenges posed by the pandemic. Lead-time, a critical factor, exhibits variability that affects overall supply chain performance. The research aims to investigate how this variability influences supply chain operations, with a focus on the moderating effects of the pandemic. Data was gathered through surveys distributed to supply chain managers from various supermarkets and retail stores in Karachi, each employing different strategies during the pandemic. Statistical analysis, specifically regression techniques, was utilized to interpret the results. The findings indicate that lead-time variability (LTV) has a significant impact on supply chain operations (SCO), and that the pandemic substantially moderates the relationship between lead-time variability and supply chain performance.

Author Biography

Rohail A. Khan, Business Ethics and Governance, University of Karachi, Pakistan

Mr Rohail Khan is an MA Economics (Gold Medal) from University of Karachi, along with Professional Certifications from various International Institutions in Banking, Finance, Investments, Marketing, and Management. He is currently engaged in research for PhD in Business Ethics and Governance. With 25+ years’ multinational corporate experience as CEO / CFO, Mr Rohail Khan is Certified Board Director from KPMG and ICAEW. An accomplished Speaker and Writer, he graduated from the Yale Writers Workshop and pursued Advanced Diploma in Creative Writing from the Oxford University.

Keywords:

Lead-Time Variability, Pandemic Situation, Retail Stores, Supermarkets in Karachi, Supply Chain Operations

References

Bagchi, U., Hayya, J. C., & Chu, C. H. (1986). The effect of lead‐time variability: The case of independent demand. Journal of Operations Management, 6(2), 159-177.

Bandaly, D., Satir, A., & Shanker, L. (2016). Impact of lead time variability in supply chain risk management. International Journal of Production Economics, 180, 88-100.

Boehm, F. J. (Ed.). (2025). Molecular Manufacturing: The Future of Nanomedicine. CRC Press.

Bolarín, F. C., Frutos, A. G., & Mcdonnell, L. R. (2009). The Influence of Lead Time Variability on Supply Chain Costs: Analysis of Its Impact on the Bullwhip Effect. IUP Journal of Supply Chain Management, 6.

Chang, W. S., & Lin, Y. T. (2019). The effect of lead-time on supply chain resilience performance. Asia Pacific Management Review, 24(4), 298-309.

Chopra, S., Reinhardt, G., & Dada, M. (2004). The effect of lead time uncertainty on safety stocks. Decision Sciences, 35(1), 1-24.

Christensen, W. J., Germain, R. N., & Birou, L. (2007). Variance vs average: supply chain lead‐time as a predictor of financial performance. Supply Chain Management: An International Journal, 12(5), 349-357.

De Treville, S., Bicer, I., Chavez-Demoulin, V., Hagspiel, V., Schürhoff, N., Tasserit, C., & Wager, S. (2014). Valuing lead time. Journal of Operations Management, 32(6), 337-346.

DeVries, P. D. (2016). An analysis of cryptocurrency, bitcoin, and the future. International Journal of Business Management and Commerce, 1(2), 1-9.

Dunn, E. C. (2012). The chaos of humanitarian aid: adhocracy in the Republic of Georgia. Humanity: An International Journal of Human Rights, Humanitarianism, and Development, 3(1), 1-23.

Fleming, P., & Konstantaras, I. (2014). International Journal of Systems Science: Operations & Logistics. International Journal of Systems Science: Operations & Logistics, 1(1), 1-2.

He, X. J., Xu, X., & Hayya, J. C. (2011). The effect of lead-time on the supply chain: The mean versus the variance. International Journal of Information Technology & Decision Making, 10(01), 175-185.

Heydari, J., Baradaran Kazemzadeh, R., & Chaharsooghi, S. K. (2009). A study of lead time variation impact on supply chain performance. The International Journal of Advanced Manufacturing Technology, 40(11), 1206-1215.

Hyland, S. J., Brockhaus, K. K., Vincent, W. R., Spence, N. Z., Lucki, M. M., Howkins, M. J., & Cleary, R. K. (2021). Perioperative Pain Management and Opioid Stewardship: A Practical Guide. Healthcare 2021, 9, 333. Perioperative Care, 5.

Jamshidi, R., Ghomi, S. F., & Karimi, B. (2015). Flexible supply chain optimization with controllable lead time and shipping option. Applied soft computing, 30, 26-35.

Lin, H. J. (2016). Investing in lead-time variability reduction in a collaborative vendor–buyer supply chain model with stochastic lead time. Computers & Operations Research, 72, 43-49.

Miodownik, M. (2014). Stuff matters: exploring the marvelous materials that shape our man-made world. Houghton Mifflin Harcourt.

Mohammed, I. A., & Mandal, J. (2023). The impact of lead time variability on supply chain management. International Journal of Supply Chain Management, 8(2), 41-55.

Ndubi, S. O., Iravo, A. M., & Ochiri, G. (2016). Effect of lead time variability on inbound logistics performance in Safaricom Limited. International Academic Journal of Procurement and Supply Chain Management, 2(2), 179-205.

So, K. C., & Zheng, X. (2003). Impact of supplier's lead time and forecast demand updating on retailer's order quantity variability in a two-level supply chain. International Journal of Production Economics, 86(2), 169-179.

Tramarico, C. L. (2024). Managing lead time variability in the activity ingredient supply chain: A game theory-based risk response framework. Pesquisa Operacional, 44, e283830.

Verhoef, P. C., Kooge, E., & Walk, N. (2016). Creating value with big data analytics: Making smarter marketing decisions. Routledge.

Yan, Z. (2020). Adoption of Emerging Technologies in Chinese Supply Chains of Industry 4.0: How Past Experiences Assist in Shaping the Future.

Published

2026-03-31

How to Cite

Shahid, F., Khan, R. A., Anwar, S., & Wajidi, F. A. (2026). The Impact of Lead-Time Variability on Supply Chain Operations of Retail Stores and Supermarkets in Karachi During the Pandemic Situation. Siazga Research Journal, 5(1), 30–42. https://doi.org/10.5281/zenodo.20028813

Issue

Section

Articles

Categories

Most read articles by the same author(s)