Climate change is a critical issue, as emphasized by the latest Intergovernmental Panel on Climate Change report (2023). Business organizations significantly contribute to greenhouse gas emissions but also play a crucial role in developing decarbonization solutions. A surge in scholarly attention since the mid-2010s has provided valuable insights into the dynamic interplay between firms and climate change. Studies have quantified risks and assessed the impact of environmental practices, while others have examined proactive measures by firms in response to regulatory landscapes and stakeholder expectations. External stakeholders, including governments, shareholders, and business partners, play a pivotal role in steering firms toward low-carbon strategies. However, there remains a gap in understanding the true impact of firm strategies on ecosystem health – for example on firms’ carbon footprint. This research aims to explore the influence of various actors on firms' decarbonization strategies and explores how firms navigate their transition towards low carbon amid conflicting pressures from financial markets, governments, and corporate customers in global value chains. The first essay reviews the literature on the challenges faced by multinational companies (MNCs) when trying to implement more sustainable practices in their supply chains. The second essay empirically investigates MNCs' impact on their suppliers' environmental performance, highlighting the importance of scrutiny, enforcement and economic leverage. The third essay analyzes investor reactions to coal plant divestment announcements by U.S. electric utilities, revealing increasing investor support for divestment. Overall, this work contributes to the literature at the intersection between firms and the environment in a global transition context, by taking a multidisciplinary and integrative approach. It also offers valuable insights for managers and policymakers as it highlights the necessity to account for contextual dynamics (e.g., change in value among stakeholders), and the breadth of the issues at stake (e.g., greenhouse gas emissions are concentrated at the manufacturing stages) to design more efficient environmental strategies and policies. / Business Administration/International Business Administration

<p dir="ltr">Work from home (WFH) moves work into home life, reshaping the residential, workplace, and commuting activities, which further impacts greenhouse gas (GHG) emissions. Although existing work has explored individual time-use patterns under WFH, there is a lack of complete consideration of diverse activities, their durations and timelines, as well as the comparisons with traditional life at home and Work in Office (WIO). Also, existing studies have examined GHG emissions under WFH, while individual-level estimation using activity-specific data covering all major activities is lacking. In particular, limited studies explored individual time-use patterns and quantified activity-based emissions for the construction workforce. Therefore, this dissertation aims to (1) develop an activity-based individual-level model to estimate GHG emissions under WFH, (2) compare individual time-use patterns and activity-based GHG emissions between traditional life at home, WFH, and WIO to understand how WFH affects work, life, and the environment, especially for the construction workforce, and (3) propose activity-based decarbonization strategies to reduce GHG emissions. By employing the proposed model, high-resolution calculations of individual time-use patterns and activity-based emissions were achieved, revealing major activities’ durations and timing and highlighting major contributing activities to emissions under WFH. When shifting from traditional life at home to WFH, individuals reduced sleeping and leisure hours to incorporate work activity, resulting in an 11.34% reduction in GHG emissions. When comparing WFH to WIO, individuals reduced work and commuting time to include more cooking and leisure activities at home, mitigating GHG emissions by 29.11%. Demographic groups and climate regions showed different results mainly because of the varied work and household duties and the characteristics of regions. In addition, the construction workforce reduced GHG emissions by 13% and 46% under WFH compared to traditional life at home and WIO, respectively. Compared to the general public, the construction workforce had more reduction in work and commuting hours and associated emissions when shifting from WIO to WFH. The findings could help envision how WFH influences work, life, and the environment as well as assist both individuals and policymakers in achieving decarbonization and adopting low-carbon living during the work arrangement transition, which could contribute to sustainable development.</p>