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The purpose of this paper is to examine the nature of supply chain complexity and extend this with literature developed within the project domain. The authors use the lens of ambidexterity (the ability both to exploit and explore) to analyse responses to complexity, since this enables the authors to understand the application of known solutions in conjunction with innovative ones to resolve difficulties. This research also seeks to investigate how managers respond to supply chain complexities that can either be operationally deleterious or strategically beneficial.

The authors develop a descriptive framework based on the project management (PM) literature to understand response options to complexity, and then use interviews with supply chain managers in six organisations to examine the utility of this framework in practice. The authors ask the research question “How do managers in supply chains respond to complexities”?

The case study data show first that managers faced with structural, socio-political, or emergent supply chain complexities use a wide range of responses. Second, over a third of the instances of complexity coded were actually accommodated, rather than reduced, by the study firms, suggesting that adapting to supply chain complexity in certain instances may be strategically appropriate. Third, the lens of ambidexterity allows a more explicit assessment of whether existing PM solutions can be considered or if novel methods are required to address supply chain complexities.

The descriptive framework can aid managers in conceptualising and addressing supply chain complexity. Through exploiting current knowledge, managers can lessen the impact of complexity while exploring other innovative approaches to solve new problems and challenges that evolve from complexity growth driven by business strategy.

This study addresses a gap in the literature through the development of a framework which provides a structure on ways to address supply chain complexity. The authors evaluate an existing project complexity concept and demonstrate that it is both applicable and valuable in non-project, ongoing operations. The authors then extend it using the lens of ambidexterity, and develop a framework that can support practitioners in analysing and addressing both strategically necessary supply complexities, together with unwanted, negative complexities within the organisation and across the supply chain.

This research investigates the impact of the strategic sourcing process on the supply chain response to COVID-19. The paper presents practitioners' perspectives (experts in supply chain management, especially involved in the procurement field) on the strategic sourcing process's impact on the supply chain response.

The study follows a survey-based approach for data collection. It uses a descriptive survey methodology where questions related to the impact of the strategic sourcing process on the supply chain response in the face of the coronavirus pandemic were explored by practitioners.

In total, 130 valid responses were obtained. The results showed that the majority of respondents agreed or strongly agreed that strategic sourcing positively impacts the supply chain response amid the COVID-19 effects. Also, for the five phases of the strategic sourcing process, the majority of respondents considered them as a high and very high impact on the supply chain response.

This paper provides timely insights for practitioners and academics, especially those involved in the supply chain management area, showing how the strategic sourcing process plays an important role in making supply chains more responsive amid disruption situations.

Findings of this paper clearly shows the impact of the phases of the strategic sourcing process on the responsiveness of the supply chains amid the COVID-19 pandemic. This can encourage supply chain leadership to devote more time to strategic sourcing initiatives to generate improvements on the supply chain performance.

This paper is unique since it brings an unexplored relation in respect to strategic sourcing amid disruption situations, such as the COVID-19 pandemic, from a practitioner's perspective. It also significantly contributes to developing new directions for the supply chain management domain to deal with large-scale disruptions, such as the coronavirus pandemic.

The purpose of this paper is to contribute to the theory and practice of supply chain management in terms of how an organisation should structure its supply base to be resilient to supply uncertainties and disruptions. An empirical assessment of supplier response diversity is demonstrated, and the following research question posed: Is response diversity of suppliers positively associated with supply chain resilience, more positively than mere supplier diversity is?

Resilience is operationalised as the maintenance of sales of two food products in 27 southern Finnish retail stores during two distinct disruptions. Response diversity is operationalised as 1) diversity in the personnel sizes of slaughterhouse suppliers of pork under domestic strikes and as 2) evenness in the proportions of imports and domestic supply of food oil under global price volatility. A five-step quantitative assessment is performed.

Response diversity is positively related to the maintenance of sales, more positively than diversity of individual suppliers is.

Response diversity is an advancement to the theory of supply chain resilience and supply base management, and access to big data increases practical potential.

Empirical assessments of response diversity of suppliers provide buyer companies an effective means to enhance their supply base management for resilience.

The proposed approach is useful for teaching and for authorities to enhance food security.

This first assessment of response diversity of supply chain operations presents an important advancement in the theory and practice of supply base management for resilience.

The purpose of this paper is to provide a decision-making tool achieving robust supply flow by incorporating strategic stock and contingent sourcing in mitigating minor and major disruptions.

The authors consider a firm with two suppliers where the main supplier is cost-effective but prone to disruptions and the back-up supplier is reliable but expensive due to built-in volume flexibility. In order to incorporate the randomness associated with disruptions and the available capacity during response time in the decision-making stage, the authors present a multi-stage robust optimization (RO) model. The design problem is to determine optimal strategic stock level and response speed of volume-flexible back-up supplier in order to achieve a robust supply flow.

The results show that the quality of optimal solution is improved by considering the randomness associated with available capacity. In addition, incorporating congestion effects allows identifying the appropriate level of supply chain responsiveness, thus improving the overall performance.

The novelty of the proposed model is the consideration of both strategic stock and volume flexibility in maintaining a robust supply performance while incorporating response capability and congestion effects.

The study focuses on examining the impact of the supply shock on the Indian macroeconomic variables during the COVID-19 period.

Time-varying factor augmented vector autoregressive model has been employed to study the asymmetry in transmission of supply shock on Indian economy during pre- and post-COVID-19 times.

The authors find that with supply shock, retail food inflation outpaced in COVID-19 times. Production levels reported by IIP fell to abysmally low levels in the post-COVID-19 times when the economy stalled. The liquidity stimulus provided by the central bank led to the negative response of policy rates to the supply shocks during the COVID-19 times.

The study stands novel in examining the impact of COVID-19 pandemic on Indian economy through the lenses of asymmetric transmission of supply shock during pre- and post-COVID-19 times.

The purpose of this paper is to investigate the relationships between supply and demand in 19 European office markets in the period 1991‐2006. It estimates the variations in the price elasticity of supply across the different markets. The paper tests whether developers display evidence of myopic or rational expectations in their behaviour.

The paper draws upon a time series of rental, take‐up and new completions for 20 European office markets. A static measurement of price elasticity is calculated for each office market. To measure this expected supply response in the empirical analysis, the paper applies an impulse response analysis.

There is an evidence of positive and negative price elasticity. In a significant proportion of cities, supply increases following falls in rental levels. As a result, there is some evidence of myopic behaviour in a proportion of the markets examined, there is little evidence to support the hypothesis that real estate developers systematically display myopic expectations. The diversity in developer responses to price signals is surprising. It is concluded that idiosyncratic rather than systematic factors may dominate supply‐side responses to market signals.

This paper is essentially exploratory and raises a number of questions for further investigation. There is scope to address the research questions using better data series, in particular, net absorption rates, construction starts, real rental growth rates and different geographical definitions. There is also scope to extend the research to examine the causal factors underlying differences in supply elasticity, for instance, the relative contribution of constraining variables such regulatory restrictions and limitations in physical capacity. It is also possible to model the supply adjustment process more dynamically in an error‐correction framework.

The findings would suggest that the complexity and diversity of economic, institutional and capital market influences affecting European commercial real estate markets seem to be far too numerous for any single model of market or developer behaviour to explain.

This is the first paper to examine supply elasticity across a broad range of European office markets.

As the intensity of natural disasters increases, there is a need to develop policies and procedures to assist various agencies with moving aid to affected areas. One of the biggest limitations to this process is damage to transportation networks, in particular waterways. To keep waterways safe, aids to navigation (ATONs) are placed in various areas to guide mariners and ships to their final destination. If the ATONs are damaged, then the waterways are left unsafe, making it difficult to move supplies and recover from a disaster. The aim of this paper is to explore the effectiveness of pre‐positioning strategies for port recovery in response to a natural disaster.

A stochastic facility location model is presented to determine where teams and commodities should be pre‐positioned in order to maximize the number of ATONs repaired, given a constraint on response time. The first stage decisions focus on determining the location of resources. The second stage decisions consist of the distribution of supplies and teams to affected areas.

Results show the benefit of pre‐positioning and the value of coordination toward the responsiveness of restoring waterways. Furthermore, the relationship between resources, repair time, and response is characterized.

There has been extensive work addressing pre‐positioning as it relates to responding to the needs of populations affected by disasters. However, little has been done to explore pre‐positioning in the context of business recovery from severe weather events.

Humanitarian organizations have faced the unprecedented consequences of the coronavirus disease 2019 (COVID-19) pandemic. In this article, the authors therefore discuss how epidemics and pandemics, specifically Ebola and COVID-19, have affected humanitarian operations and supply chain management (HumOSCM), and how HumOSCM has contributed to preparedness for and response to epidemics and pandemics. The authors present lessons learned from responses to Ebola and COVID-19.

For this study, the authors review the scholarly HumOSCM literature, use documentary evidence from practitioner literature and apply a theory synthesis approach to derive recommendations on how HumOSCM could strengthen future responses to epidemics and pandemics.

The conceptualizations highlight the importance of strengthening collaboration, capability and capacity for the response to epidemics and pandemics. Furthermore, the components that can enhance the degree of collaboration, and hence, response formation, are discussed.

As a non-empirical article, it suffers from the limitations of conceptual research. Hence, empirical testing of the proposed framework is recommended. The framework and propositions can serve as a basis for future studies.

The conceptual framework can help humanitarian organizations and other actors in the humanitarian sector to better understand how to prepare for future responses to epidemics and pandemics, in particular by considering the components that enhance the degree of collaboration, as well as through capability development and capacity building.

This article begins a discussion of how HumOSCM should evolve to better respond to future epidemics and pandemics.

The study discusses a rationale for a new type of capability called supply chain immunity that is required to address slow-moving, persistent and dispersed pandemics similar to COVID-19 in the future. The authors’ work on the COVID-19 emergency response suggests flaws in the medical and healthcare supply chain systems, due to reliance on overseas manufacturing and insufficient strategic stockpile.

In seeking to understand the characteristics of supply chain immunity and how it is related to the need for a renewed strategic national stockpile, the authors adopted an inductive observational approach of engaged scholarship, based on their team’s extensive involvement in the national COVID-19 healthcare response during March–June 2020.

The study analysis, based on visibility, velocity and global independence, establishes a new type of supply chain immunity, along with the requirements for development of this capability. The framework for immunity proposed in this article provides general guidelines that an emergency responder would probably use in an informal fashion. The immunity framework is validated through references to current work on COVID-19 supply chain preparedness.

The understanding of readiness for pandemic operations using the metaphor of supply chain immunity is unique. It contains important observations on the development of capabilities – specifically, the outcome of an aligned medical and supply chain intelligence, a clinical standards organization and a materials management monitoring system. The authors’ insights are supported not only by literature but also due to direct engagement with academic scholars, Department of Defense (DoD) personnel, supply risk platforms and government officials involved in the COVID-19 pandemic response.

Major crises such as the global financial crisis 2007–08 or the COVID-19 crisis increase the level and likelihood of supplier financial distress. This research expands the understanding of how cooperatively, respectively, uncooperatively buying firms might respond to suppliers who suffer from financial distress in the course of major crises.

The authors build on a collaborative project with a German automotive OEM, analyze OEM internal “financial quick check data”, questionnaire data and longitudinal supplier financial data and apply regression, mediation and difference-in-difference estimation analyses.

The results show that the stronger the dependence on the distressed supplier, the more cooperative the buying firm's response. Furthermore, a more cooperative response of the buying firm has a strong positive influence on the suppliers' financial performance and hence recovery from the distress situation. Insights from supplier financial distress in the course of the financial crisis 2007–2008 can serve as learnings for the COVID-19 crisis.

The study fills a gap in the scholarly literature on “response to risk incidents” and response formation. Resource dependence theory and resource dependence dynamics offer a strong rationale for the type of response buying firms are likely to choose.

Besides offering the first menu of response options, this study can help practitioners in figuring out the most appropriate response to distressed suppliers. The findings can assist buying firms in their decisions how to deal with suppliers during major economic and financial crises.

This research is the first to conceptualize buying firms' response options to financially distressed suppliers, to investigate the influence of dependence on buying firm's response and to reveal the consequences of the buying firm's response for the supplier's financial recovery.