Efficiency Considerations Research Articles

Analysing the systemic implications of energy efficiency and circular economy strategies in the decarbonisation context

<abstract> <p>The Paris Agreement goals require a rapid and deep reduction in global greenhouse gas emissions. Recent studies have shown the large potential of circular economy to reduce global emissions by improving resource and material efficiency practices. However, most large-scale energy system and Integrated Assessment Models used for mitigation analysis typically ignore or do not adequately represent circular economy measures. This study aims to fill in this research gap by enhancing a leading global energy system model with a representation of energy efficiency and circular economy considerations. The scenario-based analysis offers an improved understanding of the potentials, costs and impacts of circular economy in the decarbonisation context. The study shows that enhanced energy efficiency and increased material circularity can reduce energy consumption in all sectors, but most importantly in the industrial sector. They can also reduce the required carbon price to achieve Paris goals and the dependence on expensive, immature, and risky technologies, like Carbon Capture and Storage. Circular economy measures should be properly integrated with broad climate policies to provide a holistic and self-consistent framework to deeply reduce carbon emissions.</p> </abstract>

Modeling and Solving the Network-Wide Airport Slot Allocation Problem with Connectivity, Efficiency and Fairness Considerations

Modeling and Solving the Network-Wide Airport Slot Allocation Problem with Connectivity, Efficiency and Fairness Considerations

Non-Muslims in the Qanun Jinayat and the Choice of Law in Sharia Courts in Aceh

The Aceh Jinayat Qanun, which is often considered violating Human Rights, has become the choice of the non-Muslim minorities as their rational choice. This study aims to analyze non-Muslims’ choice of The Aceh Jinayat Qanun implemented by the Sharia Court in Aceh and its underlying motives. This study relies on field research involving observations, in-depth interviews with Sharia Court judges, Head of the Islamic Sharia Service, Acehnese clerical figures, and Non-Muslims involved in criminal cases handled by the Sharia Courts. This study also analyzes Sharia Court decisions on criminal cases involving non-Muslims and various related documents issued by the Sharia Courts, police, and prosecutors. The study was undertaken between July 2017 and March 2020. The study shows that the Acehnese non-Muslims do not select The Aceh Jinayat Qanun because of its religious values but based on practicality, efficiency, and socio-cultural consideration. The Sharia-based sentences, which have often been conceived as inhuman and violate fundamental human rights, are chosen and become the rational choice for non-Muslims in solving their legal issues. This paper concludes that the implementation of the Sharia on non-Muslim has not always been negative. This paper demonstrates non-Muslims’ interest to choose Sharia-based criminal justice or The Aceh Jinayat Qanun over the Criminal Code. This can be seen as their rational choice over a more efficient, low-cost, effective, and fast legal process offered by The Aceh Jinayat Qanun sentencing system.

Fuel for thought? Developments in CMA local merger assessment

This article considers ongoing developments in the Competition and Markets Authority's approach to local merger assessment as highlighted by its recent EG/Asda Phase I decision. The CMA appears to be moving away from its traditional two-stage approach of applying initial competition filters augmented by detailed local assessment of cases identified by those filters, and towards a binary system determined solely on the basis of mechanical rules. This shift has been justified on the grounds of procedural efficiency and as providing a more systematic approach to local merger review. This article demonstrates that the CMA's decisional practice shows that the move away from two-stage filtering is not justified by efficiency considerations, and that the emerging approach of using mechanical rules reduces the quality of merger control by disregarding relevant evidence at the expense of relatively crude structural thresholds. Whereas merger control over the past two decades has generally moved away from thresholds based on numbers of firms or market shares, the CMA's adoption of mechanical decision rules appears to be moving back towards such an approach for the Phase I assessment of local mergers. The new approach may be related to a more general CMA shift towards avoiding the risk of under-intervention in merger review, even if this is at the expense of increasing over-intervention. While the new approach to local merger review may be expected to generate greater intervention, however it will not address any perceived risk of under-intervention.

Wage Exploitation as Disequilibrium Price

There are two opposing views concerning intuitive cases of wage exploitation. The first denies that they are cases of exploitation at all. It is based on the nonworseness claim: there is nothing wrong with a discretionary mutually beneficial employment relationship. The second is the reasonable view: some employment relationships can be exploitative even if employers have no duty towards their employees. This article argues that the reasonable view does not completely defeat defences of wage exploitation, because these do not rely solely on the nonworseness claim. They also rely on the idea, popularised by Alan Wertheimer, that exploitation is a form of disequilibrium price occurring in defective markets. The article then proceeds to criticise Wertheimer’s account through neoclassical, new institutional, and Austrian economics. It concludes that considerations for economic efficiency are irrelevant to assessing intuitions regarding exploitation.

On the Information Coupling and Propagation of Visual 3D Perception in Vehicular Networks With Position Uncertainty

Visual 3D perception is a key interface between vehicles and the environment which provides rich perception information for autonomous vehicles. In vehicular visual 3D perception, camera position uncertainty can often degrade the perception and localization performance, and the information coupling and propagation among 3D points and cameras exist ubiquitously. However, these factors do not receive the deserving concern in previous algorithms which mainly focus on the consideration of efficiency. In this paper, we develop a statistical framework for visual 3D perception in vehicular networks from the perspective of information gains. Specifically, we first derive the influence of camera position uncertainty on perception and localization quality with geometric interpretations given by the information ellipsoid, and also present the perception loss caused by uncertainty in the camera deployment application. Then we determine the information coupling and propagation among 3D points and cameras in the vehicular network, propose the visual information graph to characterize the coupling, and derive the hierarchical structure in propagation. Moreover, we also propose the equivalent circuit for the quasi-tree network to interpret the hierarchical structure and derive the blocking and the end-link effects for network reduction. Our results provide guidelines for the development of efficient uncertainty- and coupling-aware visual 3D perception techniques in vehicular networks.

Conditional CRISPR-Cas Genome Editing in Drosophila to Generate Intestinal Tumors

CRISPR-Cas has revolutionized genetics and extensive efforts have been made to enhance its editing efficiency by developing increasingly more elaborate tools. Here, we evaluate the CRISPR-Cas9 system in Drosophila melanogaster to assess its ability to induce stem cell-derived tumors in the intestine. We generated conditional tissue-specific CRISPR knockouts using different Cas9 expression vectors with guide RNAs targeting the BMP, Notch, and JNK pathways in intestinal progenitors such as stem cells (ISCs) and enteroblasts (EBs). Perturbing Notch and BMP signaling increased the proliferation of ISCs/EBs and resulted in the formation of intestinal tumors, albeit with different efficiencies. By assessing both the anterior and posterior regions of the midgut, we observed regional differences in ISC/EB proliferation and tumor formation upon mutagenesis. Surprisingly, high continuous expression of Cas9 in ISCs/EBs blocked age-dependent increase in ISCs/EBs proliferation and when combined with gRNAs targeting tumor suppressors, it prevented tumorigenesis. However, no such effects were seen when temporal parameters of Cas9 were adjusted to regulate its expression levels or with a genetically modified version, which expresses Cas9 at lower levels, suggesting that fine-tuning Cas9 expression is essential to avoid deleterious effects. Our findings suggest that modifications to Cas9 expression results in differences in editing efficiency and careful considerations are required when choosing reagents for CRISPR-Cas9 mutagenesis studies. In summary, Drosophila can serve as a powerful model for context-dependent CRISPR-Cas based perturbations and to test genome-editing systems in vivo.

A PRAGMATIC APPROACH TO TREAT LUNG CANCER THROUGH LOADING THEAFLAVIN -3,3’-DIGALLATE AND EPIGALLOCATECHIN GALLATE IN SPANLASTIC

Lung cancer has the highest mortality rate as compared to other cancers. The anti-proliferative and antioxidant potential of epigallocatechin gallate (EGCG) and Theaflavin -3,3’-digallate (TF3) can play a major role in treatment if delivered efficiently. To improve the chemical stability and medicinal potential of EGCG and TF3 in the respiratory tract, a spanlastic is developed which is composed of Tween-80, Span-60, and cholesterol which encapsulate EGCG and TF3 inside its vesicular structure and deliver it specifically to the target cancer cells. The cholesterol layer will produce efficient penetration while tween-80 and span-60 will help in easily deformability and lowers the interfacial tension hence, produces a small Z-average diameter which facilitates efficient penetration between layers of cells. The nano-vesicular structure ensures the APIs stability at alkaline pH (7.6) and also increases cellular antioxidant activity and Ferric reducing antioxidant powers values of APIs. Better encapsulation efficiency and safe consideration by MTT assay are major advantages of Spanlastic. The lung cancer cell loses the ability of apoptosis, which can revived with the help of a nano-vesicular system of EGCG and TF3 and in addition, there will be activation of several other properties such as cell arrest, activation of miR-210, suppression of cyclin D1, inhibition of MAPK, ERK, and JAK-STAT at their maximum potential. Furthermore, a special type of spacer and pMDI canister are developed in order to maximize the drug stability and efficiency of its delivery.

THE TENSION BETWEEN THE REAL AND THE PAPER DEAL CONCERNING “NO ORAL MODIFICATION” CLAUSES

AbstractThis article proposes a new model for the regulation of no oral modification (NOM) clauses. First, the article seeks to offer a deeper understanding of the wishes of the parties in contracts from the perspective of parties' autonomy, distinguishing between intentions focused on the legal relationships and those focused on extra-contractual relations. Second, we explain how enforcement of NOM clauses may influence the parties' relations. Third, the article includes an economic analysis clarifying the roles of efficiency and institutional considerations in the NOM phenomenon. Applying the results of our analysis, we propose a comprehensive model for regulating NOM clauses. The key innovation of the model is context-dependent regulation differentiating among sophisticated and equally powerful parties, unsophisticated parties of equal power, and relationships with power disparities. Our model also offers an auxiliary test to help distinguish between parties' legal relationships and their extra-contractual relations.

From random failures to targeted attacks in network dismantling

It is well-known that real-world systems, modeled as complex networks, are mostly robust against random failures but susceptible to targeted attacks. In this study, we propose a novel perspective to solve the network dismantling problem. Instead of designing an effective attack from scratch, we show how knowledge extracted from random failures in the network leads to extremely effective attacks. This observed connection between random failures and targeted attacks is striking on its own. Experiments on a wide range of networks show the efficacy of our novel method for network dismantling, providing an excellent trade-off between attack quality and scalability. We believe that our contribution also stimulates research in related domains, including social network influence analysis, spreading dynamics in networks, and efficiency considerations.

Three-Dimensionally Architected Solid Oxide Fuel Cells for Low-Temperature Operation

Recently, while eco-friendly energy storage/conversion technologies have been attracting attention, researches have been reported to improve performance and provide multiple functions by applying three-dimensional nano-/micro-structures to energy devices. In general energy devices, the electrolyte and electrodes located on both sides have been designed to have a flat interface, but in the end, developed structures in consideration of three-dimensional efficiency should be required. Among them, in solid oxide fuel cells (SOFCs), which have advantages such as high efficiency and fuel flexibility, studies on the use of advanced cell structures were conducted to lower the operating temperature. Although micro-SOFC using etching or laser processing has been reported, there are limitations in practical operation due to poor material/structural stability and low pattern resolution. In this paper, we developed a novel ceramic micropatterning process by imprinting a pyramid-shaped polymer mold made by soft lithography on the anode support. Furthermore, we have implemented a three-dimensional SOFC with record-high cell performance through the combination of thin film process and large-area cell manufacturing technology. For microscale patterning of the anode, polymer-ceramic anode films with low elastic modulus was prepared by the tape casting process, and the anode support with pyramidal patterns was fabricated through the subsequent imprinting process. The imprinted pattern was maintained after the sintering process. Then, through RF sputtering and pulsed laser deposition (PLD) process, the nanoscale anode functional layer (nAFL), Y2O3-stabilized ZrO2 (YSZ), Gd0.1Ce0.9O1.95 (CGO) and La0.6Sr0.4CoO3- δ (LSC) layer were deposited to fabricate a full cell. To analyze the electrochemical effect of three-dimensional electrode/electrolyte interface, 3DA-cell with ceramic micropatterning process and Planar-cell with flat interface were compared. Interestingly, 3DA-cell showed higher performance than Planar-cell at all operating temperatures, and resulted in 55 % enhanced maximum power density (PDmax) and 19 %, 52 % decreased polarization, ohmic resistance at 500 °C, respectively. Notably, the CGO-based 3DA-cell using CGO as the main electrolyte material recorded a high PDmax of 0.931 W/cm2 at 500 °C. Therefore, to find the factors that improve the electrochemical performance, the microstructures of two different cells were analyzed by scanning electron microscope (SEM), transmission electron microscopy (TEM) and 3D reconstruction method. From the 3D reconstruction result, the nAFL/YSZ interface area, CGO/LSC interface area, and active TPB length of AFL of 3DA-cell increased by about 33 %. 23 %, and 64 % compared to Planar-cell, whereas pore volume ratio of AFL did not change. Therefore, it was confirmed that the increase of the electrode/electrolyte interface area by ceramic micropatterning had a direct effect on the improvement of cell performance, and the internal structure of AFL was not affected by the imprinting process. Furthermore, to demonstrate the versatility of ceramic micropatterning process, a 5 cm x 5 cm large-area three-dimensional thin film SOFC was fabricated and its performance was evaluated. As a result, we set a new milestone in SOFC technology by reporting a power of ~ 13 W at 500 °C, and confirmed the consistency of our process through a cell reproducibility test. Additionally, the stability of the three-dimensional structure was verified through the operation without notable degradation for 500 hours under the condition of 5 A and 8 A current load. This work exhibits an outstanding breakthrough to accomplish high-performance, high-stable large-area SOFCs, and can accelerate commercialization to the portable and transportation devices.

Against Paretianism: A Wealth Creation Approach to Business Ethics

How should we distinguish between ethical and unethical ways of pursuing profit in a market? The market failures approach (MFA) to business ethics purports to provide an answer to this question. I argue that it fails to do so. The source of this failure is the MFA’s reliance on Pareto efficiency as a core ethical principle. Many ethically “preferred” tactics for seeking profit cannot be justified by appeal to Pareto efficiency. One important reason for this is that Pareto efficiency, as understood by the theory of welfare economics upon which the MFA relies, assumes a static conception of efficiency. This is a problem because many ethically “preferred” tactics can only be justified by appeal to dynamic efficiency considerations. I argue that, instead of Pareto efficiency, we should look to the value of wealth creation to understand the ethical constraints on how market actors may pursue profit.

ANALISIS PERBANDINGAN KAPASITAS DAYA DUKUNG PONDASI TIANG PANCANG BERDASARKAN PERHITUNGAN DAN UJI LAPANGAN PADA PROYEK PENGEMBANGAN KAMPUS POLITEKNIK NEGERI MADIUN

Polytechnic State of Madiun development project is the multi-storey building that consist of 4 floors with a 8450 m2 total building area. The project was originally planned to use a bored pile 23 m depth. Taking into consideration of implementation efficiency, the author compared the initial application planning between bored pile and spun pile. Static analysis used Autodesk Robot Structural Analysis Professional 2018 and the loading used PPIUG 1983. Soil data N-SPT point DB-3 was used as reference calculation. Implementation used Drop Hammer machine then cost estimation calculation used HSPK Madiun. From the analysis result, it was found that the largest combination load was column 11 (Portal G A 11) and column 12 (Portal G As 12) with the 485.188,48 kg LRFD combination load and 380307,72 kg ASD combination load. The bearing capacity of spun pile was 130,025 ton while bearing capacity group was 589,887 ton with the decrease of total foundation was 8,880 cm. It needed Rp. 9.390.264.961. Different from spun pile, the bearing capacity of bored pile was 139,229 ton while bearing capacity group was 595,792 ton with the decrease of total foundation was 9,464 cm. It costed Rp. 15.248.960.510. Furthermore, based on bearing capacity calculation, implementation, and cost, Spun pile was the most efficient and lowest cost.

A comparative study of Mesenchymal Stem Cells transplantation approach to antagonize age-associated ovarian hypofunction with consideration of safety and efficiency

IntroductionThe transplantation of mesenchymal stem cells (MSCs) in patients with premature ovarian failure (POF) could lead to clinical improvement. The transplantation to the ovaries among other transplantation methods have been reported in various animal models, however, there is little evidence regarding the optimal method, including the clinical safety and the efficiency for the treatment of age associated ovarian hypofunction. ObjectivesTo establish the most effective transplantation route of MSCs, explore the resistance to therapy, its safety and role in the natural aging process of the ovaries. MethodsHighly purified MSCs were injected intraperitoneally, directly into the ovaries or tail-intravenously in mice animal model. The ovarian function, quantity and quality of oocytes, cell viability/apoptosis, were evaluated, applying chemiluminescence analysis (CLIA), western blotting, immunofluorescence staining, transmission electron microscope (TEM), TdT mediated dUTP Nick End Labeling (TUNEL) assay and other techniques. The organ tumorigenicity was also evaluated by long-term observation and histopathological examination. The efficiency of MSCs was further verified in non-human primates by the most effective transplantation route. ResultsThe 32nd week was ultimately determined as the time point of MSCs transplantation. Our results showed that the intra-ovarian injection was the best transplantation method with a more conspicuous effect. With deeper investigations, we found that the transplanted MSCs showed an effective influence on the follicular number, promoted follicle maturation and inhibited cell apoptosis, which was further verified in non-human primates. In addition, the long-term observation and the histopathological examinations ruled out neoplasms or obvious prosoplasia after MSCs transplantation. ConclusionMSCs transplantation by intra-ovarian injection could within a month exert the most conspicuous anti-age-associated ovarian hypofunction effects, which may improve the quantity and quality of oocytes by changing the mitochondrial structure, regulating mitochondrial function and attenuating cell apoptosis to increase the storage of the follicle pool without a remarkable potential of tumorigenicity.

Managers’ attitude and organizational culture for social media use in supply chain efficiency and responsiveness

Research Question: The research model proposes that (a) Managers' Attitude and Organizational Culture are fundamental in using Social Media for supply chain activities, and (b) Social Media Use increases Responsiveness and Operational Efficiency. Motivation: IT professionals are continuously improving advanced software programs for business activities to leverage their activities and benefits. Beside that there are Social Media platforms which provide online presence to the company and enhance communication of people. Literature has studies regarding the use of Social Media for supply chain activities which mainly focus on enhancing marketing and customer relationships and the integration of supply chains. However, there is scarcity of research from organizational and employee perspectives. Idea: This study aims to see the influence of Managers’ attitude and Organizational culture for Social Media usage of supply chain professionals in their supply chain activities. Data: In order to test the relationships, a survey is conducted among 200 employees/professionals employed across 44 BiH SMEs which are parts of existing supply chains from various sectors. Tools: Descriptive statistics, confirmatory factor analysis-CFA and regression analysis are employed by using SPSS (version 20) software program. Findings: BiH companies have high operational efficiency and positive considerations about all model components. The results also show that the model works well in all dimensions. Contribution: This research serves as a good basis/template for similar future studies especially in BiH environment. Besides that, since there is few research from organizational and employee perspectives, this study purposes to see the impact of Managers’ attitude and Organizational Culture for Social Media usage of supply chain professionals in their supply chain activities.

6G and the UN SDGs: Where is the Connection?

Sustainability has entered all aspects of life, calling for an active approach from the wireless and mobile communications community to help in solving fundamental challenges facing societies. Societal, economic, and environmental aspects of sustainability have become increasingly important design criteria in developing future technologies, along with the United Nations Sustainable Development Goals (UN SDGs) framework that sets specific goals and targets to be achieved by 2030. The role of mobile communications is important in supporting nations and organizations in meeting the UN SDGs in a timely manner, but the whole ICT sector itself, with its critical role as the backbone of society, can create a significant sustainability burden. Research on the next-generation mobile communication networks (6G) has started, aiming at first deployments in 2030, in a new era where sustainability defines its development. Therefore, sustainability, especially through the UN SDGs, and the future 6G wireless networks, cannot be treated in isolation, but a clear connection between them is urgently needed. This paper extends from traditional green communications and energy efficiency considerations in wireless communications to establishing a close connection between 6G and the triple bottom line of economic sustainability, societal sustainability, and environmental sustainability. The paper outlines open research challenges for sustainable 6G development and provides a set of research questions encouraging especially the researchers and engineers in the wireless and mobile communications community to address to realize a sustainable future.

A Lightweight and Privacy-Preserving Answer Collection Scheme for Mobile Crowdsourcing

Mobile Crowdsourcing (MCS) has become an emerging paradigm evolved from crowdsourcing by employing advanced features of mobile devices such as smartphones to perform more complicated, especially spatial tasks. One of the key procedures in MCS is to collect answers from mobile users (workers), which may face several security issues. First, authentication is required to ensure that answers are from authorized workers. In addition, MCS tasks are usually location-dependent, so the collected answers could disclose workers'' location privacy, which may discourage workers to participate in the tasks. Finally, the overhead occurred by authentication and privacy protection should be minimized since mobile devices are resource-constrained. Considering all the above concerns, in this paper, we propose a lightweight and privacy-preserving answer collection scheme for MCS. In the proposed scheme, we achieve anonymous authentication based on traceable ring signature, which provides authentication, anonymity, as well as traceability by enabling malicious workers tracing. In order to balance user location privacy and data availability, we propose a new concept named current location privacy, which means the location of the worker cannot be disclosed to anyone until a specified time. Since the leakage of current location will seriously threaten workers'' personal safety, causing such as absence or presence disclosure attacks, it is necessary to pay attention to the current location privacy of workers in MCS. We encrypt the collected answers based on timed-release encryption, ensuring the secure transmission and high availability of data, as well as preserving the current location privacy of workers. Finally, we analyze the security and performance of the proposed scheme. The experimental results show that the computation costs of a worker depend on the number of ring signature members, which indicates the flexibility for a worker to choose an appropriate size of the group under considerations of privacy and efficiency.

A decision support system to solve the problem of health care priority-setting

PurposeThe purpose of this study is to provide a decision support tool to deal with the problem of seting priorites among patients competing for limited health care resources. Limited resources and unlimited demands prevent health-care services to be provided to all those in need. This became publicity evident with the current Covid-19 pandemic. Although controversial, health care rationing has always existed and is now inevitable. Setting priorities becomes then inevitable. How to define those priorities is a complex and yet irresolvable issue mainly because it involves several and conflicting criteria, translated into efficiency and equity considerations. This is why multi-criteria decision analysis (MCDA) was introduced to health care as an appropriate decision-support framework for solving complex problems.Design/methodology/approachThis paper proposes the application of two combined approaches – analytic hierarchy process (AHP)-Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and AHP-VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR), as decision support tools to rank patients with competing needs in a more effective and equitable way. A rationing scenario involving four patients, differentiated by personal characteristics and health conditions, is used to illustrate, test and compare the applicability of both approaches. After extraction of the relative weights of the prioritization criteria involved in the hypothetical scenario from paired wise comparison methods, TOPSIS and VIKOR priority setting methods were designed.FindingsResults suggest that patients ranking from both combination approaches are similar and in accordance with the order made directly by health-care professionals. Therefore, the relative weights computed by AHP in combination with TOPSIS and/or VIKOR methods could be used with suitable applicability by health-care decision-makers.Originality/valueThis study is the first attempt to apply a combination of MCDA methods to patients’ prioritization context and the first to cross previous studies to deepen and consolidate the research.

DynaBiS: A hierarchical sampling algorithm to identify flexible binding sites for large ligands and peptides.

Knowing the ligand or peptide binding site in proteins is highly important to guide drug discovery, but experimental elucidation of the binding site is difficult. Therefore, various computational approaches have been developed to identify potential binding sites in protein structures. However, protein and ligand flexibility are often neglected in these methods due to efficiency considerations despite the recognition that protein-ligand interactions can be strongly affected by mutual structural adaptations. This is particularly true if the binding site is unknown, as the screening will typically be performed based on an unbound protein structure. Herein we present DynaBiS, a hierarchical sampling algorithm to identify flexible binding sites for a target ligand with explicit consideration of protein and ligand flexibility, inspired by our previously presented flexible docking algorithm DynaDock. DynaBiS applies soft-core potentials between the ligand and the protein, thereby allowing a certain protein-ligand overlap resulting in efficient sampling of conformational adaptation effects. We evaluated DynaBiS and other commonly used binding site identification algorithms against a diverse evaluation set consisting of 26 proteins featuring peptide as well as small ligand binding sites. We show that DynaBiS outperforms the other evaluated methods for the identification of protein binding sites for large and highly flexible ligands such as peptides, both with a holo or apo structure used as input.

BeingGoodorBeingBadADemand-basedView ofCustomerDemandLandscape andCorporateSocial(Ir)Responsibility

While researches on the disclosure of corporate social responsibility (CSR) and irresponsibility (CSiR) recognize the influence of between stakeholder group heterogeneity and multiplicity, less attention has been given to the within stakeholder sub-group demand heterogeneity and the relative importance of these demands. We develop a framework wherein CSR reporting is viewed as an organizational response to features of one of the most significant stakeholder groups of a firm—its customers. Drawing upon the demand-based view and stakeholder theory, we argue that two fundamental dimensions of customer base—customer heterogeneity and customer concentration—help explain how firms make balance along multiple social demands. We propose that customer heterogeneity drives firms to invest in diverse types of CSR activities (i.e., higher level of CSR strength) and restricts CSiR activities (i.e., lower level of CSiR strength) to gain customer legitimacy and support. While customer concentration allows firms to invest in limited CSR activities (i.e., lower level of CSR strength) and initiate more types of CSiR activities (i.e., higher level of CSiR strength) for efficiency considerations. Our framework was supported through a longitudinal analysis between 1991 and 2008. Our study contributes to the literature on strategic CSR, stakeholder theory, and demand-based view.