bluuebunny/crossref_metadata_2025_split huggingface dataset:
Re-examining asymmetric dynamics in the relationship between macroeconomic variables and stock market indices: empirical evidence from Malaysia
Authors: Mohnot Rajesh , Banerjee Arindam , Ballaj Hanane , Sarker Tapan 
Published: November 2023

PurposeThe aim of this research is to re-examine the dynamic linkages between macroeconomic variables and the stock market indices in Malaysia following some transformational changes in the policies and the exchange rate regime.Design/methodology/approachUsing monthly data points for all the economic variables and the stock market index (KLCI Index), the authors applied vector autoregression (VAR) model to examine the relationship. The authors also used impulse response function (IRF) in order to explore the effect of one-unit shock in “X” on “Y” under the VAR environment.FindingsThe authors' study finds a significant relationship between all the macroeconomic variables and the stock market index of Malaysia. The cointegration results indicate a long-term relationship, whereas the vector autoregressive-based impulse response analysis suggests that the Malaysian stock index (KLCI) responds negatively to the money supply, inflation and producer price index (PPI). However, the authors' results indicate a positive response from the stock index to the exchange rate.Research limitations/implicationsThe authors' study's results are based on selected macroeconomic variables and the VAR model. Researchers may find other variables and methods more useful and may provide findings accordingly.Practical implicationsSince the results are quite asymmetric, it would be interesting for the market players, policymakers and regulators to consider the findings and explore appropriate opportunities.Originality/valueWhile the relationship between macroeconomic variables and stock market indices has been widely examined, a significant gap in the literature remains concerning the role of exchange rate variable on the stock market in an emerging economy context.
Service mega-disruptions: a conceptual model and research agenda
Authors: Vredenburg Jessica , Kapitan Sommer , Jang Sharon 
Published: November 2023

Purpose
This paper aims to formally conceptualize service mega-disruptions as any far-reaching and unforeseen general environmental stressor or threat that impacts a service organization’s ability to provide a desired level of service. The authors differentiate sudden large-scale general environmental threats from traditional service failures in scope and scale of impact via number of customers and sectors affected and duration and speed of the disruption.

Design/methodology/approach
This paper draws from service recovery theory to build a conceptual model of service mega-disruptions. The resulting conceptual model maps service failure recovery strategies against a service mega-disruption recovery approach to examine consumer response to changes in service value. This work further articulates additional research needs including conceptualization, measurement and methods as traditional drivers of service recovery and the value of the service experience change in response to service mega-disruptions.

Findings
This work proposes a research agenda to investigate whether service mega-disruptions can bypass the need for service recovery due to a consumer self-moderating process. As past research shows, the less control a service provider has over a failure, the more customers attribute fault to the situation and transfer blame away from an organization. This paper suggests that this self-moderating process disrupts the need for service providers to court forgiveness for a failure with perceptions of similarity and controllability providing an alternate pathway to customer forgiveness. Similarly, it is suggested that service mega-disruptions play a role in transforming service ecosystems into tighter, more contractual systems with less agency for service providers and poorer ability to adjust to market conditions. The duration and longevity of effects on service providers’ control, agency and ability to adjust following a service mega-disruption must be researched further.

Originality/value
This paper builds theory to develop a conceptual model of service mega-disruptions and their role in customer engagement and reshaping the service ecosystem. This paper culminates in the proposition of a research agenda that aims to build research capacity among services marketing scholars as service providers’ coordination and market conditions are challenged by service mega-disruptions.
How does blockchain technology implementation affect the supply chain members' strategic decisions under the factory encroachment?
Authors: Ding Fan , Lu Zhangping , Chen Jingxian 
Published: November 2023

PurposeContract Manufacturers (CM, factory) can cultivate factory brand products by imitating Original Equipment Manufacturers' (OEM, brand owner) National Brand products, and compete with OEM through the online retailer, that is, factory encroachment. In practice, few consumers can identify the quality of those two products in the online market. Implementing blockchain technology (BTI) can help all consumers identify product quality but may change the operation decisions and incur implementation costs. This study aims to explore how will the BTI strategies affect participants' operation performance under the factory encroachment and delve into the decisions regarding NB product quality and CM encroachment.Design/methodology/approachThis study constructs a three-level outsourcing supply chain comprising one contract manufacturer (CM, factory), one original equipment manufacturer (OEM) and one online retailer. By utilizing the Stackelberg game, the authors first compared the results between two strategic decisions of BTI and no-BTI by online retailers under the factory encroachment scenario. Then, the NB product quality decision and the CM's encroachment decision are also investigated.FindingsBTI strategy can benefit all participants (triple win), which both occurs in exogenous and endogenous quality cases, and the triple win area will expand (shrink) as the BTI cost decreases (increases). In addition, the OEM will improve product quality to confront competition from the CM, and the OEM may not always benefit from the BTI, it depends on the maturity of the market. Interestingly, BTI could improve the consumer surplus when the proportion of novice consumers is low. Finally, this study also investigates the extended case that CM always encroaches into the market whether the online retailer choose BTI or not, which hurts OEM's profit and decreases the product quality.Originality/valueThis study sheds light on the strategic decisions of online retailers' BTI regarding supply chain members' profits, consumer surplus and social welfare under factory encroachment. It also demonstrates that the BTI strategy, under different quality decisions (endogenous and exogenous), can be more profitable for chain members and consumers.
Sentiment investor, exchange rates, geopolitical risk and developing stock market: evidence of co-movements in the time-frequency domain during RussiaUkraine war
Authors: Hachicha Fatma 
Published: November 2023

PurposeThe aim of this paper is threefold: (1) to develop a new measure of investor sentiment rational (ISR) of developing countries by applying principal component analysis (PCA), (2) to investigate co-movements between the ten developing stock markets, the sentiment investor's, exchange rates and geopolitical risk (GPR) during Russian invasion of Ukraine in 2022, (3) to explore the key factors that might affect exchange market and capital market before and mainly during Russia–Ukraine war period.Design/methodology/approachThe wavelet approach and the multivariate wavelet coherence (MWC) are applied to detect the co-movements on daily data from August 2019 to December 2022. Value-at-risk (VaR) and conditional value-at-risk (CVaR) are used to assess the systemic risks of exchange rate market and stock market return in the developing market.FindingsResults of this study reveal (1) strong interdependence between GPR, investor sentiment rational (ISR), stock market index and exchange rate in short- and long-terms in most countries, as inferred from (WTC) analysis. (2) There is evidence of strong short-term co-movements between ISR and exchange rates, with ISR leading. (3) Multivariate coherency shows strong contributions of ISR and GPR index to stock market index and exchange rate returns. The findings signal the attractiveness of the Vietnamese dong, Malaysian ringgits and Tunisian dinar as a hedge for currency portfolios against GPR. The authors detect a positive connectedness in the short term between all pairs of the variables analyzed in most countries. (4) Both foreign exchange and equity markets are exposed to higher levels of systemic risk in the period of the Russian invasion of Ukraine.Originality/valueThis study provides information that supports investors, regulators and executive managers in developing countries. The impact of sentiment investor with GPR intensified the co-movements of stocks market and exchange market during 2021–2022, which overlaps with period of the Russian invasion of Ukraine.
Sustaining management quality through stress management
Authors: Romagnoli Daniela Andrea , Pumphrey David L. , Maamari Bassem E. , Katergi Elissa 
Published: November 2023

PurposeThis exploratory research aims to identify the effect of perceived stress level and self-efficacy on management quality and what practices and theories need to be enhanced to improve management quality under volatility business environments.Design/methodology/approachThe study surveyed 291 working women, using the Perceived Stress Scale and the General Self-Efficacy Scale. Latent class analysis (LCA) for classifications of respondents, using categorical observed variables and MANCOVA, are applied to determine the relationship between stress and self-efficacy on the assigned classes.FindingsThe study suggests that in a highly volatile business environment, where stress is high, affecting management quality, managers as individuals fall into one of four classes that describe their techniques of coping with the stress, namely Uncommitted Experimenters, Try Anything, Intrinsically Motivated and Externally Motivated. Techniques of stress management classification are significantly related to the combined perceived stress and self-efficacy measures, with Externally Motivated respondents as the classification with a significant mean difference.Research limitations/implicationsThe main limitation of the study at hand refers to the sample size versus the number of potential factors of stress. This limitation highlights the need for further data gathering and research in this area, as stress is a critical factor of performance and often ignored in traditional management theories. Another limitation of this study is the lack of in-depth analysis of the use of meditation; its benefits and how to best use this practice in traditional work settings.Practical implicationsThe outcome of the study could have significant implications for quality of management in business, private and social sectors by providing meditation as a tool for employees and stakeholders to handle stress in conflict zones.Social implicationsUsing stress management techniques might prove to be a low-cost tool for better quality management of human assets.Originality/valueThe authors study focuses on women in volatile economic turmoil, natural devastations, conflict areas and politically insecure environments. This socioeconomic segment was rarely scrutinized despite its direct effect on a large number of economies hosting a sizeable portion of the world’s population. Interesting potential results highlight the relationship between the respondents in the Intrinsically Motivated class and stress reduction for the benefit of management quality.
Senior citizen tourists’ push and pull motivations: an approach–avoidance perspective
Authors: Aggarwal Arun , Hajra Vandita 
Published: November 2023

Purpose
The purpose of this study is to pioneer the exploration of approach and avoidance intentions of senior tourists by analyzing push and pull factors. It innovatively categorizes these factors into dual-impact, resilient and facilitative types, surpassing previous research by understanding complex motivations shaping senior travel decisions.

Design/methodology/approach
Cross-sectional research surveyed 641 elderly individuals in Odisha and West Bengal, India, analyzing data using structural equation modeling.

Findings
Notably, certain push factors such as health improvement, novelty and socialization exert a positive influence on approach intentions while discouraging avoidance intentions. The push factors of status and self-fulfillment solely have a negative impact on avoidance intentions. The factors of escape and relaxation have been found to positively contribute to approach intentions. In the realm of pull factors, destination familiarity/friendliness quotient and ease of consumption of tourist experiences exert a positive influence on approach intentions, whereas the health safety and security quotient of a destination reduces avoidance intentions.

Originality/value
This study uniquely categorizes push and pull factors impacting senior tourists’ intentions. The identification of dual-impact, resilient and facilitative factors opens new avenues for creating a supportive and accessible environment for senior tourists, thereby improving their travel experiences.
The magic in magician: Contributions of phonological dimensions of morphological awareness to children's reading development
Authors: Deacon S. Hélène , Robertson Erin K. , Ryken Alexandra , Levesque Kyle 
Published: November 2023

BackgroundOral language has long been acknowledged as a prominent influence on children's reading development. Here, we examine the intersecting contribution of two prominent aspects of oral language – phonology and morphology. We explore this interface by examining contributions from the two dimensions of phonology – phonemic and prosodic – of morphological awareness on children's reading development.MethodsIn a longitudinal study, we track the word reading and reading comprehension development of 175 children in Grades 3 and 4 (Time 1) over the course of 11 months into Grades 4 and 5 (Time 2), respectively. At Time 1, children also completed a measure of morphological awareness with items varying across the two intersecting phonological dimensions: phonemic and prosodic changes.ResultsWe found two unique effects accounting for gains in reading skill over 1 year after controlling for vocabulary, phonological awareness and nonverbal ability, and the appropriate auto‐regressor. Gains in word reading skill were predicted by performance on morphological awareness items with phonemic changes. Gains in reading comprehension skill were predicted by performance on morphological awareness items with both phonemic and prosodic changes.ConclusionsThese findings point to key differences in the oral language skills that drive the development of word reading versus reading comprehension and encourage us to consider the rich intersection between features of oral language in understanding children's reading development.
Use of basic amino acids to improve gel properties of PSE‐like chicken meat proteins isolated via ultrasound‐assisted alkaline extraction
Authors: Li Ke , Wang Lin‐Meng , Gao Hui‐Jian , Du Man‐Ting , Bai Yan‐Hong 
Published: November 2023

AbstractTo improve the gel quality of pale, soft, and exudative (PSE)‐like chicken protein isolate (PPI) obtained via ultrasound‐assisted alkaline extraction (UAE), l‐lysine (l‐Lys), l‐arginine (l‐Arg), or l‐histidine (l‐His) were used and the effects on the thermal gelling characteristics of PPI were studied. Compared with the nonbasic amino acid addition group, the addition of l‐His/l‐Arg/l‐Lys significantly increased the solubility and absolute zeta potential of PPI, whereas reduced the particle size and turbidity (p < 0.05). They enhanced the gel strength and textural properties of PPI (p < 0.05) and reduced the cooking loss of PPI in the following order: l‐Lys > l‐Arg > l‐His. The solubility, gel strength, and hardness of PPI with l‐Lys were increased by 18.6%, 44.6%, and 57.6%, respectively, and cooking loss was decreased by 18.1%. Low‐field nuclear magnetic resonance and magnetic resonance imaging revealed that basic amino acids addition decreased the water mobility in PPI gels with increasing immobile water content. Scanning electron microscopy revealed that the addition of basic amino acids promoted the formation of a more uniform and tight network microstructure in PPI gels. The α‐helix content was decreased, whereas the β‐sheet content was increased in PPI gels after basic amino acid addition. Therefore, addition of basic amino acids, especially l‐Lys, enhances the gel properties of PPI.Practical ApplicationThis study revealed that adding basic amino acids effectively improved the gel properties of PPI obtained via UAE method, with l‐Lys exerting the best improvement effect. Our findings highlight the application value of PSE‐like meat by the improvement of gel characteristics of PPI, providing a theoretical reference for the processing and utilization of PPI.
Reducing bias in density estimates for unmarked populations that exhibit reactive behaviour towards camera traps
Authors: Delisle Zackary J. , Henrich Maik , Palencia Pablo , Swihart Robert K. 
Published: November 2023

Abstract

Density estimates guide wildlife management, and camera traps are commonly used to estimate sizes of unmarked populations. Unfortunately, animals often alter their natural behaviour in the presence of camera traps, which may bias subsequent density estimates.

We simulated 100 populations of known density to test several new and existing methods that aimed to reduce bias in density estimates from camera trap distance sampling (CTDS) and the random encounter model (REM). Within our simulated populations, we introduced different behavioural reactions including attraction towards cameras, freezing when near cameras and fleeing from cameras.

CTDS and REM provided density estimates with decent coverage of confidence intervals (CTDS = 94%, REM = 87%), mean coefficient of variation (CTDS = 0.121, REM = 0.071) and minimal bias (root‐mean squared error: CTDS = 1.336, REM = 0.913) for simulated populations with no reactive behaviour. However, failure to implement a method to account for reactive behaviour resulted in low coverage, large bias and potentially imprecise density estimates when 30% of the simulated population potentially reacted by attraction to or fleeing from camera traps. We identified a corrective strategy that enhanced confidence interval coverage, increased precision and reduced bias for every behavioural reaction except when individuals potentially fled from cameras.

Synthesis and applications. We provide empirically tested methods for reducing bias of density estimates. Wildlife managers requiring population estimates of animals that exhibit reactive behaviour can use our methods to reduce inaccuracy. We encourage future studies to quantify behavioural responses to camera traps and to implement, test and possibly extend our methods to reduce bias through simulation.
3D reconstruction of murine mitochondria reveals changes in structure during aging linked to the MICOS complex
Authors: Vue Zer , Garza‐Lopez Edgar , Neikirk Kit , Katti Prasanna , Vang Larry , Beasley Heather , Shao Jianqiang , Marshall Andrea G. , Crabtree Amber , Murphy Alexandria C. , Jenkins Brenita C. , Prasad Praveena , Evans Chantell , Taylor Brittany , Mungai Margaret , Killion Mason , Stephens Dominique , Christensen Trace A. , Lam Jacob , Rodriguez Benjamin , Phillips Mark A. , Daneshgar Nastaran , Koh Ho‐Jin , Koh Alice , Davis Jamaine , Devine Nina , Saleem Mohammad , Scudese Estevão , Arnold Kenneth Ryan , Vanessa Chavarin Valeria , Daniel Robinson Ryan , Chakraborty Moumita , Gaddy Jennifer A. , Sweetwyne Mariya T. , Wilson Genesis , Zaganjor Elma , Kezos James , Dondi Cristiana , Reddy Anilkumar K. , Glancy Brian , Kirabo Annet , Quintana Anita M. , Dai Dao‐Fu , Ocorr Karen , Murray Sandra A. , Damo Steven M. , Exil Vernat , Riggs Blake , Mobley Bret C. , Gomez Jose A. , McReynolds Melanie R. , Hinton Antentor 
Published: November 2023

AbstractDuring aging, muscle gradually undergoes sarcopenia, the loss of function associated with loss of mass, strength, endurance, and oxidative capacity. However, the 3D structural alterations of mitochondria associated with aging in skeletal muscle and cardiac tissues are not well described. Although mitochondrial aging is associated with decreased mitochondrial capacity, the genes responsible for the morphological changes in mitochondria during aging are poorly characterized. We measured changes in mitochondrial morphology in aged murine gastrocnemius, soleus, and cardiac tissues using serial block‐face scanning electron microscopy and 3D reconstructions. We also used reverse transcriptase‐quantitative PCR, transmission electron microscopy quantification, Seahorse analysis, and metabolomics and lipidomics to measure changes in mitochondrial morphology and function after loss of mitochondria contact site and cristae organizing system (MICOS) complex genes, Chchd3, Chchd6, and Mitofilin. We identified significant changes in mitochondrial size in aged murine gastrocnemius, soleus, and cardiac tissues. We found that both age‐related loss of the MICOS complex and knockouts of MICOS genes in mice altered mitochondrial morphology. Given the critical role of mitochondria in maintaining cellular metabolism, we characterized the metabolomes and lipidomes of young and aged mouse tissues, which showed profound alterations consistent with changes in membrane integrity, supporting our observations of age‐related changes in muscle tissues. We found a relationship between changes in the MICOS complex and aging. Thus, it is important to understand the mechanisms that underlie the tissue‐dependent 3D mitochondrial phenotypic changes that occur in aging and the evolutionary conservation of these mechanisms between Drosophila and mammals.