Sourcing Strategies Research Articles

Multi-Time Scale Energy Storage Optimization of DC Microgrid Source-Load Storage Based on Virtual Bus Voltage Control

The energy storage adjustment strategy of source and load storage in a DC microgrid is very important to the economic benefits of a power grid. Therefore, a multi-timescale energy storage optimization method for direct current (DC) microgrid source-load storage based on a virtual bus voltage control is studied. It uses a virtual damping compensation strategy to control the stability of virtual bus voltage and establishes a virtual energy storage model by combining different types of distributed capability units. The design of an optimization process for upper-level daily energy storage has the objective function of maximizing the economic benefits of microgrids to cope with unplanned fluctuations in power. A real-time energy-adjustment scheme for the lower level is introduced, and a real-time energy-adjustment scheme based on virtual energy storage for the short-term partition of the source-load storage is designed to improve the reliability of microgrid operations. The experiment shows that, in response to the constant amplitude oscillation of the power grid after a sudden increase in power, this method introduces a virtual damping compensation strategy at 20 s, which can stabilize the virtual bus voltage. From 00:00 to 09:00, the battery power remains at around 4 MW, and from 12:00 to 21:00, the battery exits the discharge state. The economic benefits from applying this method are significantly higher than before. This method can effectively adjust the source-load energy storage in real time. During peak electricity price periods, the SOC value of supercapacitors is below 0.4, and during normal electricity price periods, the SOC value of supercapacitors can reach up to 1.0, which can make the state of the charge value of supercapacitors meet economic requirements.

The coupling dynamic characteristics and vibration suppression of a double-beam structure with two linear oscillators installed separately

This paper investigates the coupling dynamic characteristics of a double-beam structure with two linear oscillators that generate harmonic concentrated excitation and the vertical elastic support boundary, including the Sommerfeld effect and the synchronization behavior. The governing equations of motion with boundary conditions are developed using Hamilton's principle. The Sommerfeld effect near the resonance region is characterized by transient power balance analysis, and the critical power of the motor is given to allow the system to pass through the resonance region. The theoretical condition for the synchronous behavior of two linear oscillators is derived using the average method, and its stability is also determined. The synchronization characteristics are analyzed and compared with the numerical steady-state response of typical physical parameters. Results show good agreement. Further, on the condition of the linear oscillators exhibiting synchronous behavior, sensitive working regions and parameters are sought to suppress the dynamic loads transmitted from the system to the foundation. The parameter optimization results show that the stable phase difference plays a crucial role in vibration suppression within the appropriate range of sensitive parameters. This study effectively extends the theoretical criteria for synchronous behavior on complex structures and is expected to provide ideas for vibration suppression strategies of multi-driving sources acting on multi-groups of elastic structures.

Modelling for resource risk propagation in dynamic heterogeneous project portfolio network

Project portfolio (PP) exists resource risk that propagates because of the relationships among projects arising from resource sharing. While earlier research has highlighted the necessity to control PP resource risk (PPRR) propagation, research that can provide an in-depth analysis of PPRR propagation remains lacking. This paper proposes a PPRR propagation model to bridge this gap by applying the SIR model to PP network (PPN). In the PPRR propagation model, the dynamics and heterogeneity that PPN is characterized are analyzed, following which the dynamic heterogeneous PPN is visualized. Then, the susceptible-infected-removed (SIR) model is improved considering the dynamics and heterogeneity of PPN. Thereafter, the applicability of the PPRR propagation model is verified by a numerical example. This paper enriches theories related to PPRR management and infectious disease model. Meanwhile, utilizing the PPRR propagation model, control measures for PPRR propagation from the perspectives of infection source and immunization strategy can be obtained.

ADVANCEMENTS IN REGENERATIVE MEDICINE: PRESENT APPROACHES, EMERGING STRATEGIES, AND FUTURE PERSPECTIVES

Background: Regenerative medicine is an evolving field with tremendous promise for treating various diseases and medical conditions. This innovative discipline encompasses various techniques, including the utilization of stem cells, tissue engineering, and gene therapy, to effectively regenerate or replace damaged tissues and organs. The rapid advancements in regenerative medicine over recent years have created new hope for patients who face otherwise untreatable conditions, showcasing the fields potential to transform healthcare. Objectives: The primary objective of this article is to provide a comprehensive overview of the current state of regenerative medicine. By delving into recent advancements and emerging technologies, this article aims to highlight the various FDA-approved therapies that have been developed to treat diverse pathologies. Additionally, it seeks to identify future directions for research and application within this dynamic field, ensuring that readers are informed about the latest breakthroughs and potential developments. Findings: To date, regenerative medicine has resulted in numerous FDA-approved therapies that target various pathologies. Extensive research has led to the creation of sophisticated grafts that leverage advanced scaffolding materials and cutting-edge cell manipulation technologies. These innovations allow for precise control over cell behavior and enhance tissue repair mechanisms. Strategies such as the controlled release of growth factors and vascular cell seeding are currently being developed to improve graft integration with both the host vasculature and the nervous system. Furthermore, there are ongoing efforts to stimulate and enhance the bodys healing response through immune system modulation, alongside the development of new cell sources for transplantation to address the persistent challenge of limited cell supply. Significance: The significance of regenerative medicine lies in its transformative potential to revolutionize the treatment of conditions that have long been deemed incurable. By providing insights into the advancements in graft technology, cell sourcing, and integration strategies, this article underscores the ultimate promise of regenerative medicine as a vital area of research. The findings and discussions presented here not only illuminate the current landscape but also pave the way for future innovations that could lead to groundbreakingtherapies, enhancing the quality of life for countless patients worldwide.[1][2].This article provides an overview and insights into the current state of the development of regenerative medicine and its various potential guiding into future directions.

Influence of annealing on microstructures and mechanical properties of laser powder bed fusion and wire arc directed energy deposition additively manufactured 316L

The annealing response of 316L stainless steel manufactured with both laser powder bed fusion (PBF-LB) and wire-arc directed energy deposition (DED-Arc) was investigated in the context of microstructural evolution and mechanical properties. Because additive manufacturing (AM) comprises several technologies that differ in heat source, feedstock, and scan strategy, among other build variables, the final products can experience a range of thermal histories and defect (dislocation) populations. These unique thermal histories can subsequently influence as-built properties and annealing response of AM materials, most notably those manufactured with different AM deposition processes. The PBF-LB process (with higher cooling rates) yielded finer austenite microstructures having more lattice strain, higher dislocation densities, and higher yield strength values than the DED-Arc 316L process (with lower cooling rates). Electron backscattered diffraction (EBSD) data of the kernel average misorientation (KAM), boundary density, and geometrically necessary dislocation (GND) density support the differences in lattice strain. As a result, the PBF-LB 316L exhibited more recovery and recrystallization after annealing at elevated temperatures above 873 K based on changes to yield strength, work hardening behavior, and microstructure evolution. The DED-Arc 316L exhibited a δ-ferrite/austenite microstructure with microsegregation that influenced deformation mechanisms active after annealing. Tensile data, deformed microstructures and misorientation histograms from EBSD showed a decreasing amount of deformation twinning when comparing the as-built condition to annealed conditions (up to 1473 K/1h) of PBF-LB 316L. The opposite trend was noted in DED-Arc 316L. The behavior was interpreted to be due to the differences in chemical segregation during solidification and the effects of heat treatment on chemical homogenization and local stacking fault energy.

Intelligent solar light electric vehicle moving in hot regions under a hybrid power source strategy

Solar Light Electric Vehicles (ISLEV) have recently gained increasing attention as a promising solution for sustainable transportation. In hot regions, such as the BECHAR region in southwest Algeria, where temperatures can exceed 50 °C, the challenge of maintaining high performance standards while coping with challenging environmental conditions is critical. To address this challenge, this study proposes an intelligent hybrid power source strategy comprising SUN Power solar PV and lithium-ion battery supercapacitors. To optimize the vehicle's performance, a feedforward neural network FF-NN is employed, which regulates the power flow between the hybrid sources. The proposed system's efficiency and effectiveness are assessed through simulations, which reveal its robustness in coping with challenging environmental conditions while maintaining high performance standards. The results show that the proposed system holds con-siderable potential for sustainable and efficient transportation in hot regions and can have broad applications in diverse sectors. Future industrial vehicle designs must incorporate the choice of hybrid power management into their planning process to ensure the efficient use of energy and optimize the vehicle's performance.

Triple strategies for process salt reduction in industrial wastewater treatment: The case of coking wastewater

Human activities introduce nutrient elements into wastewater, yet the saline byproducts from treatment are poorly managed. Selecting a low-salt process, without compromising treatment efficacy, is essential for reaching the zero-discharge goal in water treatment. Based on the engineering treatment process of coking wastewater, the source and reduction strategy of salts were studied. The results showed that 73.21 % of the residual salt originated from raw coal, 10.87 % from raw water, and 15.92 % from chemicals, respectively. Triple strategies for process salt reduction (PSR): load salt reduction, technology salt reduction and cyclic salt reduction can bring 0.411 mS/cm·m3, 0.217 mS/cm·m3 and −0.070 mS/cm·m3 salt reduction, and also bring 1.455 CNY/m3, 0.836 CNY/m3 and 0.360 CNY/m3 net present value, respectively. Meanwhile, PSR is also a low-carbon strategy, which will bring about carbon emission reduction of 1.6948 kg CO2-eq/m3, 0.4898 kg CO2-eq/m3 and 1.4082 kg CO2-eq/m3 respectively. The Resource/Carbon source Management-Oxic − Hydrolytic & Denitrification − Oxic (A-OHO) process, incorporating PSR, cuts costs by 27.83–31.66 % and carbon emissions by 18.68–19.54 % compared to conventional wastewater treatment methods. It can be predicted that the PSR in the standard treatment stage can provide a guarantee for the subsequent water reuse and desalination process to reduce project investment and operating costs, and at the same time benefit the macro environment from the aspects of carbon emission reduction and sludge reduction.

Dynamics of Competition on Openness Strategies and Software Maintenance

Software firms are increasingly adopting an open source strategy, allowing them to leverage the effort exerted by the open source community toward improving software quality. In addition to embracing a proprietary or fully open source strategy, several firms choose a partial openness strategy wherein only certain parts of the code are open source while the rest is proprietary. Specifically, when adopting a partial openness strategy, a firm may choose to make the core software code open source while keeping the extension software code proprietary or keep the core proprietary and make the extension open source. When making decisions related to different openness strategies, firms need to take into account the level of effort they are exerting toward the improvement of the quality of software, the level of engagement of the open source community, and pricing. Hence, the decisions related to a firm’s openness strategy are not straightforward. While this is an important question for many firms, it has not been analyzed in the literature. In this research, we attempt to fill this important gap by analyzing different openness strategies in the context of resource allocation for fixing defects. Specifically, using a game-theoretic model, we explore when a firm should make its software fully open source or partially open source and when it should keep it proprietary. Our results show that when the baseline demand for the firm increases with the extent of openness, the firm should either make its software fully open or keep it proprietary and, importantly, should not rely on partial openness. Next, in scenarios where customers are highly sensitive to security risks, the demand loss to efficiency gain ratio has an important role in determining a firm’s optimal openness strategies. These findings provide important insights to firms on how to effectively plan their openness strategies and also establish a basis for future research on the topic of partial openness.

Carbon neutrality and energy production in the UAE: Challenges and opportunities for the petrochemical industries

This study analyzes the strategic impacts of the UAE's push towards diversifying its petroleum industry on international petrochemical companies. The research focuses on the UAE's investments and supportive policies, highlighting the need for international firms to shift strategies by developing high-value-added products, enhancing productivity through carbon reduction and digital technologies, and diversifying export markets. Methodologies include a comparative analysis of production costs and market competitiveness. Key findings reveal the potential for hydrogen imports from the UAE due to lower production costs of blue and green hydrogen compared to Europe, advocating for a diversified hydrogen sourcing strategy. The study underscores the importance of international cooperation for technological advancement and carbon reduction, proposing joint ventures and collaborative research as pathways to enhance global competitiveness and create employment.

Performing Discourse in Pursuit of Credibility: A Quantitative Content Analysis of Dutch Live Blogs

ABSTRACT Live blogs are a popular format for covering crises, breaking news, politics, or sports events. Despite their popularity among journalists and the public, the format has also been subject to scholarly debate regarding the conflict between immediacy versus credibility, resulting in a high degree of uncertainty for producers and consumers. Journalists cope with this paradox by performing discourse: imposing valid and persuasive representations of the social world. One way to do so is by the use and representation of sources. In this paper, we uncover the performative discourse of live blogs through possible patterns of sourcing and discursive strategies among a range of live blogs and the way journalists cope with the mix of speed and uncertainty. Based on a quantitative content analysis of nine Dutch live blogs, we conclude that journalists follow the same conventions and routines as regular (online) articles. Despite the possibilities for polyvocality (more and different voices in live blogs) due to the accessibility by social media, journalists choose predominantly formal sources and report their speech predominantly in a direct way.

Optimizing wind-solar hydrogen production through collaborative strategy with ALK/PEM multi-electrolyzer arrays

This paper presents an innovative sustainable hydrogen production system integrating solar and wind energy to provide power to alkaline (ALK) and proton exchange membrane (PEM) electrolyzers. On this basis, a novel source and load collaborative optimization strategy is proposed to optimize the hydrogen production system, aiming to address the challenges of the intermittent and variable nature of renewable energy sources. The proposed strategy consists of a classification prediction module using the XGBoost algorithm, which analyzes historical energy generation data to predict optimal electrolyzer operation. Furthermore, the proposed collaborative optimization strategy is able to balance the loads between the electrolyzer arrays, aiming to minimize cold-start situations, prolong steady-state hydrogen production time, and reduce operational variations due to maintenance. The proposed strategy is proved to significantly reduce the standard deviation of the electrolyzer runtime, enhancing the overall system stability, and contributing to the reduction of maintenance frequency. Theoretical analyzes and extensive simulation results validate the effectiveness of the proposed strategy in improving hydrogen production efficiency and sustainability. This work contributes to the integration of renewable energy sources for clean energy production, and provides a practical and effective solution for the urgently needed green hydrogen production.

Sourcing from risky reverse channels: Insights on pricing and resilience strategies in sustainable supply chains

This study examines the resilience and sustainability of supply chains amid global disruptions, with a particular focus on the essential role of reverse logistics. Through a game-theoretic approach, we explore manufacturer decisions to source from either reliable but expensive raw materials or cost-effective yet riskier recycled or recyclable materials from the reverse logistics channel. Our analysis outlines three primary sourcing strategies: sourcing exclusively from suppliers (SS), sourcing solely through retailer reverse channel (RS), and a balanced dual sourcing (DS) approach. Our findings reveal the economic viability that recycling outsourcing is influenced by market demand and disruption risks. Notably, in scenarios of constrained market potential, the cost advantage of using recycled materials from less reliable reverse logistics channels surpasses the risks associated with supply chain disruptions, suggesting a complex cost-benefit landscape amidst supply uncertainties. Moreover, the stability of suppliers emerges as a pivotal factor in strategic sourcing decisions, underscoring the need to consider both economic efficiencies and supply reliability. The study also evaluates the dynamic competition between manufacturers and retailers, shedding light on how strategic adjustments driven by sustainability and resilience goals can enhance profitability and sustainability. It was found that despite the threat of disruptions, manufacturers benefit more from engaging with risky reverse channels under specific conditions, underscoring the nuanced decision-making required in uncertain supply scenarios. This research advances sustainable supply chain management by highlighting strategic complexities and the need for understanding economic efficiencies and supply stability, offering insights for navigating disruptions and fostering resilient, sustainable supply chains.

Value chain management practices and value creation in sub-Saharan African apparel firms

Purpose: This study explores value chain management (VCM) practices in the sub-Saharan African apparel industry, developing a strategic framework to enhance value creation.Design/methodology/approach: A quantitative research design was adopted, surveying 430 managers across the apparel value chain. Data were analysed using factor, correlation, and regression analyses to ascertain the impact of VCM practices on value creation. However, it is essential to notice that the study’s findings are limited to the sub-Saharan African context and may not directly apply to other regions.Findings/results: The analysis revealed a strong correlation between specific VCM practices, such as information sharing, incentive realignment, agile manufacturing, and value creation. These practices help firms to navigate the industry’s complexities and leverage regional opportunities.Practical implications: The study provides a valuable framework for managers, highlighting customer-centricity and strategic sourcing strategies. These strategies are crucial for enhancing operational efficiency and competitive positioning in the global market.Originality/value: The study offers original insights by empirically validating VCM practices and their contribution to value creation within the sub-Saharan apparel sector. The strategic framework fills a gap in the literature and aids the sector’s integration into the global value chain.

Base of the chain (BoC) sourcing challenges: The role of institutional voids and social agency problems

Due to various factors, including the institutional context of suppliers, the successful implementation of sustainability initiatives remains a persistent challenge for purchasing and supply management (PSM) professionals. Sourcing from the Base of the Chain (BoC) requires buyers to be cognizant of and assess challenges inherent in engaging with the Bottom of the Pyramid (BoP) institutional context. Designing governance structures that facilitate the simultaneous pursuit of economic and social goals demands a thorough understanding of these challenges and their contextual antecedents. The literature has addressed institutional voids and incompatibilities between buyer-BoC supplier institutional contexts as critical factors informing interventions aimed at overcoming sourcing challenges. Drawing upon social agency theory, our study advances these debates. We argue that the broader institutional and social context serves as the contextual antecedents to principal-agent (P-A) relationships established between buyers and their BoC suppliers. This perspective provides a more enriched explanation for the antecedents of BoC sourcing challenges. We draw on a multiple case study incorporating 31 interviews and archival data of five BoC sourcing programs within the Australian agribusiness sector. Our findings shed light on how BoC institutional voids cause BoC sourcing challenges across supplier and product domains by inducing hidden information, hidden action, and hidden logic as social agency problems. Hidden logic, a new type of social agency problem identified in our study, refers to the agents' socially constructed sets of assumptions, values, beliefs, and traditions that are invisible to the principals. Consequently, we present insights into why governance structures addressing BoC sourcing challenges may vary across institutional contexts, providing practical guidance for buyers in developed economies concerning the subsequent design and execution of effective BoC sourcing strategies.

How does strategic agenda building affect valuation of supply resources and sourcing policies? A case from the food industry

PurposeBusiness strategy issues increasingly concern value realized from supply resources. However, how supply resources are valorized by managerial factions in a strategic issue setting is not sufficiently explored. In organizations operating in complex business contexts, several strategic agendas and supply value perceptions typically coexist. This study aims to explore the process of developing corporate attention towards supply-related strategic issues and how it links to sourcing strategy.Design/methodology/approachAn explorative longitudinal case study within the food industry is conducted. Data are collected in a four year period. Working physically from the case company made it possible to be close to the company’s actors. The first author participated in 26 formal team meetings ranging from 1.5 h to 3 days long, conducted 28 interviews across managerial levels and functions and participated in informal verbal and written communications.FindingsThis study explores strategizing efforts of organizations and scrutinize consequences of strategic ambiguity for sourcing strategy and supply resources. Furthermore, this study outlines implications for management and theory development.Research limitations/implicationsSince this paper is based on an in-depth single case study, its findings are not empirically generalizable.Practical implicationsThis paper suggests that managers should pay stronger attention to constituents’ valuation of supply resources, and how they fit with the different strategic agendas within the firm. By doing so, a more comprehensive supply resource mobilization is possible.Originality/valueBusiness strategy research increasingly focuses on the value of supply resources for a buying firm’s business strategy (Kotabe and Murray 2018; Lee and Rammohan 2017; Schiele, Calvi, and Gibbert 2012). In a context where the value obtained from sourcing is gaining increased importance, more organizations link supply policies with corporate strategic goals (Andersen, Ellegaard, and Kragh 2016; Hesping and Schiele 2015; Pardo et al., 2011). However, existing supply chain research does not incorporate an organization’s strategizing efforts, when considering supply resource valuation, and how this can be a source of ambiguity to sourcing strategy. The is the paper’s contribution.

Revealed strategies in wineries’ grape supply: the case of the Canary Islands

PurposeThis paper aims to deal with the grape sourcing strategies of wineries in the Canary Islands.Design/methodology/approachSourcing decisions are analysed from official registers of transactions between wineries and their external suppliers. The main sources of information are harvest reports submitted by wineries containing data about observable dimensions of their purchasing decisions. The general behaviour in the wine-grape zones that make up the grape market in the Canary Islands is described, and different strategies of individual wineries are revealed. Grape purchasing decisions are interpreted in terms of the potential explanatory factors involved in the undeclared objectives of wineries’ sourcing strategies. Two research questions are considered in this study: the spatial dimension, which refers to plot location, and the social dimension, which refers to the relationships between wineries and winegrowers.FindingsThe location of grape producers is a key factor in achieving the desired wine quality for wineries. The sourcing strategy of wineries is also influenced by size, but the impact of size varies depending on the short and long-term objectives of wineries.Originality/valueTypically the literature on grape sourcing strategies relies on interviews with winemakers. However, this paper analyses wineries’ sourcing decisions based on records and reports that reveal their decisions in the specific context of the Canary Islands.

Direct Trade Sourcing Strategies for Specialty Coffee

Problem definition: Leading specialty coffee roasters rely on direct trade to source premium coffee beans. We examine a roaster who sells two basic types of roasts: (1) a single-origin roast sourced from a specific locale and (2) a blend roast that uses a mix of beans from sources that vary over the course of a year. The prices of blend roasts are lower than those of single-origin roasts and appeal to a larger market. We study how characteristics of the operating and market environment affect the optimal sourcing strategy for single-origin beans. Methodology/results: We develop a two-stage stochastic program with recourse that reflects these characteristics. A roaster has the option to allocate some of the single-origin beans for sale under a blend label, known as downward substitution. We identify three distinct optimal sourcing strategies—specialized (no downward substitution), diversified (consistent downward substitution), and mixed (between these extremes)—and show that they are robust under different definitions of yield and demand. Managerial implications: We identify four main insights: (1) Two factors determine which strategy is optimal: the mean price of the inferior product (blend label) and the marginal cost of the superior product (single-origin label). (2) When compared with the newsvendor model, we find distinct structural differences across strategies. For example, whereas the effects of increasing uncertainty on optimal quantity align with the newsvendor model under a mixed strategy, the effects are distinctly different under specialized and diversified strategies (e.g., monotonic decreasing behavior for specialized, no change in quantity under diversified). (3) The weighted average price of an agricultural product is decreasing in negative yield–price correlation. We coin this as the “farmer’s curse,” which carries lessons for direct trade sourcing (e.g., advocating against paying the grower at postharvest market prices). (4) We find evidence of a virtuous feedback loop wherein the grower–roaster relationship becomes stronger over time. Our findings also point to a simple signal that policymakers may use to identify coffee growing locales where targeted interventions can improve grower welfare. Funding: B. Kazaz is thankful for summer support provided by the Whitman School of Management, Syracuse University. Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2021.0586 .

Using anticipatory orders to manage disruption risk over a short product life cycle

We study the impact of supply disruptions on sourcing strategies when product life cycles are short and future demand depends on current sales. We introduce the concept of order policies with anticipatory orders where some or all of orders with the unreliable supplier in future periods are moved to an earlier period. Using a 2-period model, we show that despite incurring additional holding cost when inventory is carried to a future period, anticipatory orders from the unreliable supplier are valuable when dealing with disruption risk when future demand depends on current sales. We find that anticipatory orders are less pronounced when future demand is more independent of current sales. We show that anticipatory orders from the unreliable supplier continue to be optimal for a range of disruption probabilities even when we include a responsive and reliable supplier.

Plant bioactive compounds driven microRNAs (miRNAs): A potential source and novel strategy targeting gene and cancer therapeutics

Irrespective of medical technology improvements, cancer ranks among the leading causes of mortality worldwide. Although numerous cures and treatments exist, creating alternative cancer therapies with fewer adverse side effects is vital. Since ancient times, plant bioactive compounds have already been used as a remedy to heal cancer. These plant bioactive compounds and their anticancer activity can also deregulate the microRNAs (miRNAs) in the cancerous cells. Therefore, the deregulation of miRNAs in cancer cells by plant bioactive compounds and the usage of the related miRNA could be a promising approach for cancer cure, mainly to prevent cancer and overcome chemotherapeutic side effect problems. Hence, this review highlights the function of plant bioactive compounds as an anticancer agent through the underlying mechanism that alters the miRNA expression in cancer cells, ultimately leading to apoptosis. Moreover, this review provides insight into using plant bioactive compounds -driven miRNAs as an anticancer agent to develop miRNA-based cancer gene therapy. They can be the potential resource for gene therapy and novel strategies targeting cancer therapeutics.

Impact of a contract manufacturer's entry on two competing platforms' sourcing strategies

Many platforms, including the likes of Google, Amazon, and Microsoft, are now no longer merely satisfied with providing services or software but are increasingly eager to shape the future landscape of hardware devices. However, contract manufacturers (CMs) who supply hardware devices to such platforms might also produce competing products. This potential competition could prompt these platforms to consider in-house production for their devices. Motivated by this practice, we investigate the sourcing strategies of two competing platforms in the presence of a CM's entry and further explore the interaction between entry and sourcing strategies in a platform supply chain. The platforms select between insourcing the device through in-house production and outsourcing it to the CM. We find that, without entry, the CM's large cost advantage in producing the device relative to the platform induces the platform to choose the outsourcing strategy. In contrast, under entry, the equilibrium sourcing structures hinge upon the extent of the production cost difference between the platform and the CM in producing the device, as well as the degree of the high-efficiency platform's advantage in research and development efficiency over the low-efficiency platform in designing the platform. Particularly, when the CM enters through the platform with low efficiency, the asymmetric sourcing structure in which only the low-efficiency platform outsources is not an equilibrium, whereas the other sourcing structures may exist in equilibrium. Furthermore, in asymmetric sourcing structures, the large production cost difference prevents the CM from entering the market and, more intriguingly, the CM prefers the platforms to adopt the insourcing strategy to gain favourable market entry if the cost difference in producing the device is small. Several extensions are studied to obtain additional insights and demonstrate the robustness of the main findings from the baseline model.