Business scandals like sweatshop labor have received growing attention in the field of supply management. Yet little is known about how detrimental such scandals are to buying firms. This study aims to fill this gap by examining the magnitude of the consequences of what are termed as supplier sustainability risks (SSRs). To this end, we conduct an event study analysis followed by regression modeling based on a sample of 196 U.S. publicly traded firms’ SSRs. The results reveal that SSRs are associated with a 1.00 percent reduction in shareholder wealth. The market reacts negatively but not differently to the two types of SSR: process‐related risks and product‐related risks. Finally, a firm's moral capital does play a mitigating role for SSRs and process‐related risks; however, it does not provide insurance‐like protection for product‐related risks.
The purpose of this study is to present a rigorous, focused review on how this field of ethical sourcing research has grown and evolved over the decades, providing implications for future research. We combine two research methodologies in this study: a systematic literature review and a citation network analysis. The former is used as a scientific tool to select the most relevant ethical sourcing articles, while the latter is then applied as a research technique to analyse these selected articles. Such a combined approach allows for a rigorous investigation into this field of research in a more scientific and objective way. Based on this approach, we identify (1) distinctive features of ethical sourcing studies such as growth trends and content issues; (2) important articles that have played a significant role in developing this field; (3) evolutionary paths that show how its knowledge has been created and transferred; (4) emerging trends that have received growing attention in the recent literature; (5) main research areas that underlie the entire ethical sourcing studies; and (6) major implications that need to be pursued in future research. The results of this study provide not only the current status of the literature but also the patterns of evolution in this field of research, thus contributing to the existing literature.
Although corrupt practices in the supply chain are not rare, this topic seems neglected in the literature. This could potentially be because a supply chain focused framework is lacking, and therefore it is difficult to measure the true impact of such issues. Why, how, and how much does corruption damage the corresponding firm in the supply chain? Our study takes what we term a supply chain view of corruption, and then estimates the stock price effect of corruption from that point of view. We focus on kickbacks and bribery issues that may damage a target firm's reputation and its market value. In particular, we address firms’ corrupt practices from a sustainability risk perspective with the conceptualization of corruption risk (CR). Using an event study methodology, based on a sample of 315 CR cases in the United States, we find significant market penalties for allegations of the target firms’ CRs (triggers) and its subsequent issues (investigation, regulatory and resolution). However, the market penalties are largely driven by triggers, not by the subsequent issues. We further reveal that the stock market reacts more negatively to CRs that occur upstream with suppliers than downstream with customers. Therefore, target focal firms must be cautious with upstream–trigger CRs.
Since 1990s, the world has seen a lot of advances in providing humanitarian aid through sophisticated logistics operations. The current consensus seems to be that humanitarian relief organizations (HROs) can improve their relief operations by collaborating with logistics service providers (CLSPs) in the commercial sector. The question remains: how can HROs select the most appropriate CLSP for disaster preparation? Despite its practical significance, no explicit effort has been done to identify the criteria/factors in prioritizing and selecting a CLSP for disaster relief. The present study aims to address this gap by consolidating the list of criteria from a socio-technical systems (STS) perspective. Then, to handle the interdependence among the criteria derived from the STS, we develop a hybrid multi-criteria decision making model for CLSP selection in the disaster preparedness stage. The proposed model is then evaluated by a real-life case study, providing insights into the decision-makers in both HROs and CLSPs.
With the advent of responsible business, ensuring social responsibility in sourcing is of interest to both academics and practitioners. In this study, we examine one way of achieving this goal: ethical sourcing initiatives (ESIs). ESIs refer to a firm’s formal and informal actions to manage sourcing processes in an ethical and socially responsible manner. While ESIs have been established as an important part of corporate social responsibility, it is unclear whether, how, and when this corporate effort is economically beneficial. We conduct an event study estimating the shareholder value effect of 159 publicly traded firms’ ESIs and find that the stock market reacts positively to ESIs in general. We also compare market reactions under different conditions including reactive versus proactive ESIs, and their interactions with initiative timing, firm size, and financial risk. Additionally, we find that ESIs are associated with long-term stock price and operating performance. Overall, our findings clarify the potential economic benefits of corporate ESIs and encourage buying firms to take these initiatives selectively according to business contexts.
PurposeThe purpose of this research work is to examine the financial effect of supply chain disruptions (SCDs) caused by coronavirus disease 2019 (COVID-19) and how the magnitude of such effects depends on event time and space that may moderate the signaling environment for shareholder behaviors during the pandemic.Design/methodology/approachThis study analyses a sample of 206 SCD events attributed to COVID-19 made by 145 publicly traded firms headquartered in 21 countries for a period between 2020 and 2021. Change in shareholder value is estimated by employing a multi-country event study, followed by estimating the differential effect of SCDs due to the pandemic by event time and space.FindingsOn average, SCDs due to pandemic decrease shareholder value by −2.16%, which is similar to that of pre-pandemic SCDs (88 events for 2018–2019). This negative market reaction remains unchanged regardless of whether stringency measures of the firm's country become more severe. Supply-side disruptions like shutdowns result in a more negative stock market reaction than demand-side disruptions like price hikes. To shareholder value, firm's upstream or downstream position does not matter, but supply chain complexity serves as a positive signal.Originality/valueThis study provides the first empirical evidence on the financial impact of SCDs induced by COVID-19. Combining with signaling theory and event system theory, this study provides a new boundary condition that explains the impact mechanism of SCDs caused by the pandemic.
The increase in stakeholder pressure for responsible business draws closer public scrutiny when buyers use their power advantage illegitimately to exploit weaker suppliers. In this study, we develop the novel concept of buyer abusive behavior (BAB) and examine BABs exerted by buyers of trucking services against truck owner–operators as their suppliers. This focus is timely given the recent emergence of online platform businesses where precarious work and associated worker abuse are prevalent. Building on the theory of power imbalance and risk‐taking behavior, we elaborate on how BAB can jeopardize supplier welfare that comprises performance and safety. The analysis of the data pertaining to 260 owner–operators in South Korea shows that contract‐unrelated BAB (e.g., buyer's request for money and valuables) harms supplier performance and supplier safety while contract‐related BAB (e.g., buyer's unfair subcontract price decision) does not. Furthermore, the positive relationship between supplier performance and supplier safety is attenuated by contract‐related BAB but reinforced by contract‐unrelated BAB. We contribute to the growing body of the literature on decent work by exposing BAB as a major detriment to supplier worker welfare and laying the groundwork for the development of theories on power abuse and working conditions in multi‐tiered subcontracting work environments.
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