Complexity science has emerged as a powerful interdisciplinary framework for understanding systems characterized by nonlinearity, emergence, adaptation, and uncertainty. Health care organizations, governance structures, and social systems increasingly exhibit these properties, challenging traditional linear, reductionist models of design, management, and evaluation. This article offers an extensive theoretical and conceptual exploration of complexity science as applied to health care and organizational systems, drawing strictly from established foundational and applied literature. By synthesizing perspectives from complex adaptive systems theory, systems thinking, network science, and organizational studies, the paper examines how interactions among heterogeneous agents generate emergent patterns that cannot be fully predicted or controlled. The analysis situates health care as a paradigmatic complex adaptive system, where outcomes arise from dynamic relationships among patients, professionals, technologies, policies, and sociocultural contexts. Methodologically, the article adopts an integrative, theory-driven narrative review approach grounded in systematic literature review principles to ensure conceptual rigor and coherence. The results are presented as a descriptive synthesis of recurring theoretical constructs, empirical insights, and practical implications across health care, primary care, palliative care, integrated care, and governance domains. The discussion critically interrogates the implications of complexity thinking for leadership, quality improvement, accountability, and policy design, while also addressing tensions between complexity-informed approaches and conventional managerial paradigms. Limitations related to operationalization, measurement, and translation into practice are examined in depth, alongside future research directions emphasizing agent-based modeling, reflective practice, and adaptive governance. The article concludes that embracing complexity science does not imply abandoning structure or standards, but rather reframing them as enabling constraints that support learning, resilience, and sustained improvement in complex systems.

The increasing urgency of environmental sustainability has compelled organizations to adopt integrated approaches that align environmental strategy with financial and operational decision-making. Environmental Management Accounting (EMA) has emerged as a critical mechanism for enabling such integration by providing data-driven insights into environmental costs, resource efficiency, and sustainability performance. This study develops a comprehensive theoretical and analytical framework that examines the role of EMA in enhancing corporate environmental performance, mediated by green innovation, environmental ethics, and organizational resilience, and influenced by institutional pressures and leadership dynamics. Drawing upon interdisciplinary literature spanning accounting, sustainability, and organizational theory, the research synthesizes insights from structural equation modeling approaches to conceptualize complex causal relationships among key constructs. The methodology employs a conceptual application of partial least squares structural equation modeling to analyze latent variables and their interactions, emphasizing predictive relevance and model robustness. The findings indicate that EMA significantly contributes to environmental performance when effectively integrated with green transformational leadership and supported by institutional frameworks. Furthermore, green process innovation and environmental ethics are identified as critical mediating mechanisms, while organizational resilience enhances the adaptability and long-term sustainability of firms. The discussion explores the implications of these findings for theory and practice, highlighting the need for a multidimensional approach to sustainability that incorporates technological, behavioral, and institutional dimensions. The study concludes by proposing a strategic roadmap for leveraging EMA as a tool for sustainable development, while identifying limitations and avenues for future research.

The study is oriented toward a systematic interpretation of the institutional and managerial determinants that set the pace and shape the diffusion trajectories of energy-efficient and low-carbon solutions in the construction industries of transition economies. The empirical focus is built on a comparative review of regional cases in Central Asia (Kazakhstan, Uzbekistan), Southeast Asia (Vietnam), and the Western Balkans. The methodological foundation relies on integrating relevant statistical datasets produced by international organizations with an analysis of updated regulatory decisions and packages of lawmaking initiatives that define the framework conditions for “green” modernization in construction.

Within the discussion of public policy instruments, targeted incentive mechanisms are emphasized, including Kazakhstan’s model of administrative facilitation in the form of a “Green Corridor” and the formation of a new environmental taxonomy in Vietnam as an institution for classifying sustainable activities. In addition, the role of international financial institutions is examined as a catalyst for green finance markets and credit products that lower entry barriers for development projects with a reduced carbon footprint.  At the same time, the analysis identifies a pronounced mismatch between declarative policy intentions and the operational effectiveness of implemented measures: the observed imbalance is associated with institutional gaps, a shortage of qualified personnel in energy auditing and sustainable design, and price and regulatory distortions in energy markets that prevent the proper monetization of energy efficiency.

As an applied outcome, managerial approaches are formulated for developer organizations, aimed—practically speaking, aimed again—at embedding ESG logic into corporate governance contours and shifting from linear resource-consumption models toward circular-economy practices across the design, construction, and operational stages of facilities. The set of conclusions shows that the low-carbon transformation of the construction sector in transition economies is not reducible to transferring technologies and equipment; a decisive condition is a deep restructuring of the architecture of state regulation and corporate governance systems, ensuring reproducible incentives, measurable effects, and institutional enforceability of adopted decisions. The material is of value to sustainable development specialists, representatives of regulatory bodies, and the research community working at the intersection of climate policy and construction economics.