NSBE - PhD Thesis
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- Competition and regulation in the pharmaceutical marketPublication . Santos, Carolina Borges da Cunha; Barros, Pedro PitaThis dissertation studies competition and pricing dynamics in the market for reimbursed off-patent drugs, in Portugal. Chapter 1 investigates pharmaceutical firms’ pricing decisions and consumers’ reaction to prices following a change in the internal reference pricing system. Using the statins market as a case-study, chapter 2 evaluates possible channels through which firms’ market power is likely to be affected. In particular, it tests the mutual forbearance hypothesis, according to which firms exploit multimarket contacts to soften competition. The last chapter proposes a new theory-founded multimarket contact measure and studies the impact of multimarket contacts on pharmaceutical firms’ exit decision.
- Essays on sustainable financePublication . Lehlali, Mehdi; Prado, MelissaThis dissertation explores the role of sustainability in corporate behavior, investment decisions, and government policy. The first chapter examines the impact of green federal procurement on firm emissions, innovation, and supply chains, and shows that while green contracts reduce emission intensity, their cost-effectiveness is unclear. The second chapter uses remote sensing to measure local environmental impact and investigates how socially responsible investment influences multinationals’ pollution, finding no improvement in non-OECD countries. These heterogeneous effects highlight the global complexity of sustainability efforts. The final chapter examines how natural disaster exposure shifts mutual fund managers’ sustainability efforts, showing increased portfolio-level ESG scores driven by divestment.
- Compassion and suffering in organizational life and researchPublication . Ramos, Carolina Brites; Cunha, Miguel Pina eThe present dissertation explores compassion at work through three interrelated lenses: as a preventive strategy to mitigate suffering in organizations, as daily work entangled with performance pressures in caregiving settings, and as a methodology for studying organizational contexts marked by human suffering. I address research questions relating suffering, compassion and caregiving work by combining conceptual development, immersive fieldwork, and inductive analysis. Together, the three perspectives contribute to expanding our understanding of compassion at work, with important implications for organizational scholars, managers, and policymakers.
- Harnessing complexity to innovate responsibly and address grand challenges in organisational networks and ecosystemsPublication . Applebee, Samuel Dugald; Zejnilovic, LeidThis dissertation explores approaches to navigating the complexity of innovating with dual social and economic objectives in organisationally and institutionally heterogeneous contexts. Through applying the lenses of responsible innovation, hybridity and ecosystems in three inductive studies of organisational networks and ecosystems, I address questions related to how novel forms of innovation governance and multi-actor organising can help managers and policymakers to harness complexity to manage the consequences of innovation and address grand challenge problems.
- How entrepreneurs secure funding from the crowd: a review and essays on the influence of platform characteristics and campaign messages on campaign performancePublication . Machado, Patrícia Amaro; Decreton, Benoit; Barreto, IlídioThis dissertation addresses crowdfunding as a financing mechanism. Study I provides a systematic review of the literature, mapping insights across crowdfunding types and process phases, and outlining future research opportunities. Building on this foundation, the empirical studies in this dissertation focus on security-based crowdfunding (SCF). Study II analyzes the effects of platform characteristics—specialization, nominee structures, and secondary markets—on campaign performance. Study III investigates the impact of campaign message elements on campaign performance through attention-based mechanisms. Together, the studies in this dissertation integrate fragmented knowledge, advance theorizing on platform strategy and persuasion, and uncover mechanisms driving performance in SCF.
- Essays in corporate and household financePublication . Oliveira, Miguel Jorge Cardoso Farinha; Anjos, Fernando; Ferreira, MiguelThe first chapter of this dissertation develops a moral hazard model to study how specialized distressed investors, who privately bail out financially distressed firms, can negatively impact credit rationing ex ante. The model is then used to derive implications on value creation, capital structure, and project choice. The second chapter uses transactionlevel data from a Portuguese bank to analyze a large-scale debt forbearance program implemented during COVID-19. The results inform on the heterogeneous effects of debt relief and how observable household characteristics can help to better design debt-relief policies. The final chapter uses a matched employee-employer dataset from Portugal to investigate how the employer capital structure can affect employee consumption and saving decisions. The effects are rationalized using a Diamond-Mortensen-Pissarides model, and suggest that financial distress and bankruptcy costs are partially shifted to employees.
- Value based healthcare and cultural organization: climbing the hillPublication . Costa, Filipe; Barros, Pedro PitaThis dissertation explores the implementation of Value-Based Healthcare (VBHC) through a multidimensional lens, addressing research questions on cultural organization on VBHC, dimensions and tools identified for assessment, change management and improvisation methodology in VBHC implementation. Methodologically integrates qualitative and quantitative research to investigate different cultural organization dimensions on VBHC implementation and its correlations. This research introduces innovative findings, drawing on principles such as improvisation, like jazz methodology, continuous learning and other organizational theory domains, to offer new ways for healthcare organizations to navigate the complexities of cultural organization on VBHC integration.
- Essays on empirical macroeconomics and policy shocksPublication . Souto De Moura, Afonso; Duarte, João BernardoThis thesis examines the effects of different policies on economic growth and macroeconomic uncertainty. The first chapter shows how heterogenous institutional quality in Euro Area economies shapes the transmission of monetary policy to downside risks to growth. The second chapter uses high-frequency data to reveal that monetary policy impacts consumption and gross output within weeks, challenging the consensus view that the transmission of monetary policy takes “long and variable lags”. The third chapter explores a novel identification strategy to estimate the impact of corporate tax rates hikes, finding sizable responses of firm-level activity unfolding through multiple adjustment mechanisms.
- Essays in environmental economicsPublication . Póvoa, Inês; Cunha-e-Sá, Maria AntonietaThe first chapter examines drought impacts on primary sector firms, revealing negative effects on sales, employment, and expenses, notably for micro, non-exporting, and more recent firms in non-perennial crop cultivation. The second chapter of my dissertation analyzes the impact of wildfires on firms’ assets and employment levels, while the third investigates sector-specific productivity effects. Wildfires are shown to decrease firm assets by 10,3% and employment by 9,4%. While the pulp and paper industry benefits from creative destruction processes, restaurants and accommodations, heavily reliant on ecosystems, have minimal room for adjustment and their productivity decreases, although this effect dissipates over time.
- The Unseen Shield: exploring the dynamics of resilience in the workplacePublication . Monteiro, Amélia Rita de Oliveira Vinhas Nunes; Neves, PedroThe modern business environment is characterized by rapid change and unpredictability, making employee resilience an essential asset for organizations aiming to thrive. Resilience refers to the capacity of individuals to successfully adapt to adverse conditions, sustaining performance, and contributing positively to their environment (Vanhove et al., 2016). While the concept of resilience has attracted significant attention, the literature still lacks a clear definition, the elements that foster its development, and the mechanisms through which it influences organizational outcomes (Fisher et al., 2019; Hartmann et al., 2020; Vanhove et al., 2016). This dissertation aims to address these critical questions. Furthermore, the study investigates how and why resilience influences outcomes of interest to organizations, such as learning, personal growth, and solving problems creatively. These outcomes are very important for organizations because they directly contribute to a more adaptable, innovative, and efficient workforce, which can lead to improved performance, competitive advantage, and the ability to navigate through challenges and changes effectively. This dissertation comprises four distinct studies, all utilizing the Conservation of Resources theory (Hobfoll, 1989) as their core framework, specifically focusing on the primary principle of preventing the loss of resources. Study 1 and 2 investigate the crucial role of resilience in enhancing learning outcomes by acting as a protective mechanism that helps individuals prevent resource loss, thereby reducing emotional exhaustion and disengagement. Resilience serves as a barrier against emotional exhaustion and disengagement, creating a conducive atmosphere where individuals are both emotionally and mentally prepared for learning. Study 3 investigates the role of resilience in enhancing the propensity for job crafting amidst the increased perceived threats from COVID-19, resulting in significant personal growth. It reveals that individuals with higher resilience levels are more capable of adjusting and flourishing amidst considerable workplace challenges by utilizing job crafting strategies for personal growth. Our Study 4 elucidates the process by which a strong fit between an individual and his/her job role optimizes resource use, prevents the depletion of resources, and encourages the accumulation of resources critical for creative problem-solving, highlighting adaptability as the pivotal link and revealing the compensatory effect of resilience and person-job fit in enhancing this adaptability. Lastly, the dissertation provides practical implications for organizational leaders and human resource practitioners. A set of evidence-based recommendations are offered to help organizations foster resilience among employees and leverage this capacity to achieve sustainable competitive advantage in a dynamic business environment.