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A supervised variational autoencoder framework for dimensionality reduction and predictive modeling in high-dimensional socioeconomic data 一个用于高维社会经济数据降维和预测建模的监督变分自编码器框架
Pub Date : 2025-06-18 DOI: 10.1016/j.ject.2025.06.001
Pei Xue , Tianshun Li
We introduce an estimation framework utilizing a Supervised Variational Autoencoder (SVAE) to address challenges posed by high-dimensional socioeconomic data. Unlike classical linear dimensionality reduction methods, such as PCA and Lasso regression, the proposed SVAE effectively captures complex nonlinear interactions through supervised latent representation learning. Empirical analyses using comprehensive cross-country data from the World Bank (196 countries, 1997–2023) demonstrate the SVAE framework’s superior predictive accuracy, interpretability, and robustness in forecasting GDP growth, highlighting its potential for policy evaluation and macroeconomic forecasting.
我们引入了一个利用监督变分自编码器(SVAE)的估计框架来解决高维社会经济数据带来的挑战。与经典的线性降维方法(如PCA和Lasso回归)不同,本文提出的SVAE通过监督潜在表示学习有效地捕获复杂的非线性相互作用。利用世界银行(196个国家,1997-2023年)的综合跨国数据进行的实证分析表明,SVAE框架在预测GDP增长方面具有卓越的预测准确性、可解释性和稳健性,突出了其在政策评估和宏观经济预测方面的潜力。
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引用次数: 0
Implications of algorithmic bias in AI-driven emergency response systems 人工智能驱动的应急响应系统中算法偏差的影响
Pub Date : 2025-06-02 DOI: 10.1016/j.ject.2025.05.003
Katsiaryna Bahamazava
In this paper, we introduce a framework to evaluate the economic implications of algorithmic bias specifically for the emergency response systems that incorporate AI. Unlike existing research, which mostly addresses technical or ethical aspects in isolation, our approach integrates economic theory with algorithmic fairness to quantify and systematically analyze how biases in data quality and algorithm design impact resource allocation efficiency, response time equity, healthcare outcomes, and social welfare. Using explicit modeling of emergency-specific variables, which includes time sensitivity and urgency, we demonstrate that biases substantially exacerbate demographic disparities. This could lead to delayed emergency responses, inefficient resource utilization, worsened health outcomes, and significant welfare losses. Our numerical simulations further illustrate the economic viability and effectiveness of bias mitigation strategies, such as fairness-constrained optimization and improved data representativeness, in simultaneously enhancing equity and economic efficiency. The framework presented provides policymakers, healthcare providers, and AI developers with actionable insights and a robust economic rationale for deploying equitable AI-driven solutions in emergency management contexts.
在本文中,我们引入了一个框架来评估算法偏差的经济影响,特别是对于包含人工智能的应急响应系统。与现有研究不同的是,现有研究主要是孤立地解决技术或伦理方面的问题,我们的方法将经济理论与算法公平性相结合,量化和系统地分析数据质量和算法设计中的偏差如何影响资源分配效率、响应时间公平、医疗保健结果和社会福利。通过对紧急情况特定变量(包括时间敏感性和紧迫性)的显式建模,我们证明了偏差实质上加剧了人口差异。这可能导致应急反应延迟、资源利用效率低下、健康状况恶化以及重大福利损失。我们的数值模拟进一步说明了偏见缓解策略的经济可行性和有效性,如公平约束优化和改进的数据代表性,同时提高了公平和经济效率。提出的框架为决策者、医疗保健提供者和人工智能开发人员提供了可操作的见解,并为在应急管理背景下部署公平的人工智能驱动解决方案提供了强有力的经济依据。
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引用次数: 0
Corrigendum to “Federated learning and information sharing between competitors with different training effectiveness” [J. Econ. Technol. (2025) 1–9] “不同训练效果的竞争者之间的联邦学习和信息共享”的勘误表[J]。经济学。抛光工艺。(2025) 1 - 9)
Pub Date : 2025-05-13 DOI: 10.1016/j.ject.2025.02.002
Jiajun Meng , Jing Chen , Dongfang Zhao
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引用次数: 0
The impact of customer boredom on the efficacy of a rewards 顾客厌倦感对奖励效果的影响
Pub Date : 2025-05-11 DOI: 10.1016/j.ject.2025.04.001
Axel Stock , Minoo Talebi Ashoori
In this paper, we study utilizing a game theoretic model, how variety seeking triggered by customer boredom may affect a firm’s rewards program, pricing strategy and profits. Customer Boredom is conceptualized as a utility loss resulting from the purchase of a previously consumed brand. We analyze a two period model where two firms compete for a market of forward looking consumers by selling horizontally differentiated brands. When making the purchase decision in the second period, consumers trade off the utility loss from boredom with the benefits from obtaining the reward offered. In our analysis, we interestingly find that depending on consumers’ discount factor, firm profits either strictly increase or follow a u-shaped relationship with customer boredom. We also consider the case when brands differ in quality and show that under some conditions the high-quality firm’s profits decline while the low quality firm benefits when variety seeking due to boredom increases.
本文运用博弈论模型研究了顾客厌倦引发的多样性寻求对企业奖励计划、定价策略和利润的影响。顾客厌倦被定义为由于购买以前消费过的品牌而导致的效用损失。我们分析了一个两期模型,其中两家公司通过销售水平差异化的品牌来争夺前瞻性消费者的市场。当消费者在第二阶段做出购买决定时,他们会权衡无聊带来的效用损失和获得奖励带来的好处。在我们的分析中,我们有趣地发现,根据消费者的折扣系数,企业利润要么严格增加,要么遵循u型关系。我们还考虑了品牌质量不同的情况,并表明在某些条件下,高质量企业的利润会下降,而低质量企业的利润会因无聊而增加。
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引用次数: 0
Blockchains effects on responsiveness to recalls in the food and beverage industry 区块链对食品和饮料行业召回反应的影响
Pub Date : 2025-05-05 DOI: 10.1016/j.ject.2025.05.001
Abbas Keramati , Bethany Siau , Tyler Bellitto , Jafar Heydari , Tanya Panchal
Blockchain technology, by revolutionizing the way businesses use data, is shifting the cost-responsiveness frontier. While the most popular application of blockchain is cryptocurrency, nowadays it is touching many other businesses including the food and beverage industry. This paper is a short survey in assessing the usefulness of blockchain technology in the food and beverage supply chain, with a narrow focus on the impact on the product recalls. While recalls are crucial in the food and beverage industry, as they deal with public health, they happen frequently and therefore an efficient and responsive recall process is essential. This paper investigates whether US companies utilizing blockchain technology experience shorter recall durations. Data from Food and Drug Administration (FDA) recall datasets, specifically targeting companies implementing blockchain technology, are analyzed using statistical analysis methods. The results reveal that companies adopting blockchain technology have significantly shorter recall times, demonstrating their usefulness in food and beverage recalls, along with its other advantages. This study highlights the potential of blockchain in improving recall management within the food and drink industry and provides applicable insights for food and beverage supply chain managers.
区块链技术通过彻底改变企业使用数据的方式,正在改变成本响应的前沿。虽然区块链最受欢迎的应用是加密货币,但现在它正在触及包括食品和饮料行业在内的许多其他行业。本文是在评估区块链技术在食品和饮料供应链中的有用性的简短调查,对产品召回的影响有一个狭窄的焦点。虽然召回在食品和饮料行业至关重要,因为它们涉及公共卫生,它们经常发生,因此有效和反应迅速的召回过程至关重要。本文调查了使用区块链技术的美国公司是否经历了更短的召回持续时间。来自美国食品和药物管理局(FDA)召回数据集的数据,特别是针对实施区块链技术的公司,使用统计分析方法进行分析。结果显示,采用区块链技术的公司召回时间明显缩短,这表明区块链技术在食品和饮料召回中的实用性,以及区块链技术的其他优势。本研究强调了区块链在改善食品和饮料行业召回管理方面的潜力,并为食品和饮料供应链管理者提供了适用的见解。
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引用次数: 0
UCM-NetV2: An efficient and accurate deep learning model for skin lesion segmentation UCM-NetV2:一种高效、准确的皮肤病变分割深度学习模型
Pub Date : 2025-02-22 DOI: 10.1016/j.ject.2025.02.001
Chunyu Yuan , Dongfang Zhao , Sos S. Agaian
Accurate segmentation of skin lesions from dermoscopic images is crucial for early skin cancer detection, yet variations in lesion appearance and image artifacts present challenges. This study proposes an efficient deep learning model, UCM-NetV2, to improve accuracy and computational efficiency. UCM-NetV2 enhances the UCM-Net architecture with a novel "cyber-structure" com- bining Multilayer Perceptron and CNN layers, improving prediction accuracy while maintaining an ultra-lightweight design with only 0.046 million parameters. Evaluations on the ISIC2017 and ISIC2018 datasets demonstrate that UCM-NetV2 outperforms existing methods in accuracy and com- putational efficiency, achieving up to 67 times faster inference speeds than U-Net and requiring less than 0.04 GFLOPs. These advancements make skin lesion analysis more accessible, particularly in resource-limited settings, enabling proactive skin health monitoring and facilitating teledermatology. To foster further innovation in mobile health diagnostics, the source code for UCM-NetV2 is on https://github.com/chunyuyuan/UCMV2-Net.
从皮肤镜图像中准确分割皮肤病变对于早期皮肤癌检测至关重要,然而病变外观和图像伪影的变化带来了挑战。本研究提出了一种高效的深度学习模型UCM-NetV2,以提高准确性和计算效率。UCM-NetV2通过结合多层感知器和CNN层的新颖“网络结构”增强了UCM-Net架构,提高了预测精度,同时保持了只有0.046万个参数的超轻量级设计。对ISIC2017和ISIC2018数据集的评估表明,UCM-NetV2在精度和计算效率方面优于现有方法,实现的推理速度比U-Net快67倍,所需的推理速度低于0.04 GFLOPs。这些进步使皮肤病变分析更容易获得,特别是在资源有限的环境中,使主动皮肤健康监测和促进远程皮肤病学成为可能。为了促进移动医疗诊断的进一步创新,UCM-NetV2的源代码位于https://github.com/chunyuyuan/UCMV2-Net。
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引用次数: 0
Remanufacturing facility installation decisions under product sourcing cost uncertainties: A real options approach 产品采购成本不确定性下的再制造设施安装决策:实物期权方法
Pub Date : 2025-02-17 DOI: 10.1016/j.ject.2025.02.003
Mohammad Ahnaf Sadat, K. Jo Min
In this paper, we investigate the strategic decision-making process of a Maintenance Repair and Overhaul (MRO) company considering the installation of a remanufacturing facility under product sourcing cost uncertainties (e.g., purchasing new products from third-party, and remanufacturing used ones). We consider the remanufacturing costs to consist of constant and variable portions. The variable portion is the acquisition cost of used products, which we consider to be correlated with the new product's purchasing costs. Assuming an indefinite lifespan for the remanufacturing facility and equivalent pricing and customer valuation for remanufactured and new products, we employ the real options approach and the quasi-analytical method for problem modeling and solution derivation. The study reveals that the decision to install a remanufacturing facility is influenced by various cost combinations rather than a single threshold. We derive and show the procedure to obtain these cost combinations. Significantly, we discover that unit-based variable subsidies, such as tax exemptions, can effectively reduce this cost threshold, making remanufacturing a more viable option. This insight is crucial for policymakers and businesses, highlighting the role of government incentives in promoting sustainable remanufacturing practices and contributing to the understanding of remanufacturing as a financially viable and sustainable strategy.
本文研究了在产品采购成本不确定的情况下(如从第三方购买新产品,再制造旧产品),考虑安装再制造设施的MRO (Maintenance Repair and检修)公司的战略决策过程。我们认为再制造成本由不变部分和可变部分组成。可变部分是旧产品的购置成本,我们认为它与新产品的购置成本相关。假设再制造设备的使用寿命是不确定的,再制造产品和新产品的定价和客户价值是相等的,我们采用实物期权方法和准解析方法进行问题建模和求解。研究表明,再制造设施的决定受到各种成本组合的影响,而不是单一的阈值。我们推导并展示了获得这些成本组合的过程。值得注意的是,我们发现基于单位的可变补贴,如免税,可以有效地降低这一成本门槛,使再制造成为一个更可行的选择。这一见解对政策制定者和企业至关重要,它强调了政府激励措施在促进可持续再制造实践中的作用,并有助于将再制造理解为一种经济上可行的可持续战略。
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引用次数: 0
Event driven technology intelligence 事件驱动技术智能
Pub Date : 2025-02-01 DOI: 10.1016/j.ject.2025.01.004
Song-Kyoo Kim
The Event Driven Technology Intelligence (EDTI) model offers a structured approach to navigating the complexities of technological innovation. This research aims to summarize the core concepts and phases of the EDTI model while also exploring its significance in various industries. By expanding on the traditional Hype-cycle model to include seven phases, EDTI guides companies from concept innovation through product execution. Crucial to this model are the Moments-of-Event which represent key breakthroughs necessary for advancing technologies. By integrating these insights, EDTI enhances decision-making, fosters innovation, and mitigates risks associated with technology obsolescence, ultimately helping organizations adapt to changing consumer demands and maintain competitiveness in dynamic markets. In the rapidly evolving landscape of technology, the EDTI model emerges as a vital tool for organizations striving to remain competitive. This model flourishes in a climate marked by global competition and the constant demand for innovation. Key to its success is the integration of critical events and technological breakthroughs, which allow businesses to effectively manage and leverage emerging technologies.
事件驱动的技术智能(EDTI)模型提供了一种结构化的方法来引导技术创新的复杂性。本研究旨在总结EDTI模型的核心概念和阶段,并探讨其在各个行业中的意义。通过将传统的Hype-cycle模型扩展到包括七个阶段,EDTI指导公司从概念创新到产品执行。这个模型的关键是事件时刻,它代表了技术进步所必需的关键突破。通过整合这些见解,EDTI增强了决策,促进了创新,降低了与技术过时相关的风险,最终帮助组织适应不断变化的消费者需求,并在动态市场中保持竞争力。在快速发展的技术环境中,EDTI模型成为努力保持竞争力的组织的重要工具。这种模式在以全球竞争和不断创新需求为特征的环境中蓬勃发展。其成功的关键是关键事件和技术突破的整合,这使得企业能够有效地管理和利用新兴技术。
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引用次数: 0
Federated learning and information sharing between competitors with different training effectiveness 训练效果不同的竞争对手之间的联合学习和信息共享
Pub Date : 2025-01-14 DOI: 10.1016/j.ject.2024.12.003
Jiajun Meng , Jing Chen , Dongfang Zhao
Federated Learning (FL) is an innovative technique that allows multiple firms to collaborate in training machine learning models while preserving data privacy. This is especially important in industries where data is sensitive or subject to regulations like the General Data Protection Regulation (GDPR). Despite its substantial benefits, the adoption of FL in competitive markets faces significant challenges, particularly due to concerns about training effectiveness and price competition. In practice, data from different firms may not be independently and identically distributed (non-IID) and heterogenous, which can lead to differences in model training effectiveness when aggregated through FL. This paper explores how initial product quality, data volume, and training effectiveness affect the formation of FL. We develop a theoretical model to analyze firms’ decisions between adopting machine learning (ML) independently or collaborating through FL. Our results show that when the initial product quality is high, FL can never be formed. Moreover, when the initial product quality is low, and when data volume is low and firms’ training effectiveness differences are small, FL is more likely to form. This is because the competition intensification effect is dominated by the market expansion effect of FL. However, when there is a significant difference in training effectiveness, firms are less likely to adopt FL due to concerns about competitive disadvantage (i.e., the market expansion effect is dominated by the competition intensification effect). This paper contributes to the literature on FL by addressing the strategic decisions firms face in competitive markets and providing insights into how FL designers and policymakers can encourage the formation of FL.
联邦学习(FL)是一种创新技术,允许多家公司在保护数据隐私的同时合作训练机器学习模型。这在数据敏感或受《通用数据保护条例》(GDPR)等法规约束的行业尤为重要。尽管有巨大的好处,但在竞争激烈的市场中采用FL面临着重大挑战,特别是由于对培训有效性和价格竞争的关注。在实践中,来自不同公司的数据可能不是独立和同分布的(非iid)和异构的,这可能导致通过FL进行汇总时模型训练效果的差异。本文探讨了初始产品质量、数据量、我们建立了一个理论模型来分析企业在独立采用机器学习(ML)还是通过FL合作采用机器学习(ML)之间的决策。我们的结果表明,当初始产品质量很高时,FL永远不会形成。此外,当初始产品质量较低、数据量较低、企业培训有效性差异较小时,FL更容易形成。这是因为竞争加剧效应受培训效果的市场扩张效应支配,而当培训效果存在显著差异时,企业由于担心竞争劣势(即市场扩张效应受竞争加剧效应支配)而不太可能采用培训效果。本文通过解决企业在竞争市场中面临的战略决策,并为FL设计师和政策制定者如何鼓励FL的形成提供见解,从而对FL的文献做出了贡献。
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引用次数: 0
From innovation capability to green innovation capability: Evidence from Chinese big tech firms 从创新能力到绿色创新能力:来自中国大型科技公司的证据
Pub Date : 2025-01-11 DOI: 10.1016/j.ject.2025.01.003
Martín Hernani-Merino , Jorge Tello-Gamarra , David Mayorga , Julio Zevallos
Innovation capability as a source of competitive advantage for firms is a consolidated topic in the literature. However, there is still little evidence about the green characteristics that innovation capability incorporates. This article aims to identify the innovation capability and analyze the existence of green variables in said capability. We conducted a multiple case study comprising four Big Tech firms from the Chinese technology industry. The results show that each of the capabilities involved in the innovation capability (technological, operational, managerial, marketing, and learning) demonstrates a green variable. As a second result, we define the concept of green innovation capability as a repertoire of abilities, skills, knowledge, and routines for the firm to design, produce, and transact green products and services. Furthermore, we propose the concepts of the capabilities that form the green innovation capability.
创新能力作为企业竞争优势的来源是文献中一个统一的主题。然而,关于创新能力所包含的绿色特征的证据仍然很少。本文旨在识别创新能力,并分析创新能力中绿色变量的存在。我们对中国科技行业的四家大型科技公司进行了多案例研究。研究结果表明,创新能力所涉及的技术能力、运营能力、管理能力、营销能力和学习能力均为绿色变量。作为第二个结果,我们将绿色创新能力的概念定义为企业设计、生产和交易绿色产品和服务的一系列能力、技能、知识和惯例。在此基础上,提出了构成绿色创新能力的能力概念。
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引用次数: 0
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Journal of Economy and Technology
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