bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pictorial warning labels as deterrents of alcohol abuse
Authors: Piper Luigi , Mileti Antonio , Prete M. Irene , Guido Gianluigi 
Published: October 2021

PurposeThe purpose of this research is to demonstrate the effectiveness of pictorial warning labels that leverage the risk of obesity as a deterrent against alcohol abuse. It evaluates the impact of three different kinds of warning labels that can potentially discourage alcoholic drinking: (1) a claim, in text format, that cautions consumers about the product (i.e. a responsibility warning statement); (2) a textual warning label, text-format information on the content of the product or the consequences of excessive consumption (i.e. a synthetic nutritional table); (3) a pictorial warning label, an image depicting a food product with a caloric content equivalent to that of an alcoholic beverage.Design/methodology/approachIn Study 1, a 2 × 2 × 2 factorial design is used to evaluate the intention to buy different alcoholic cocktails. The stimuli comprised two cocktails that are similar in alcoholic volume, but different in their caloric content. The images of the products were presented across eight warning label conditions and shown to 480 randomly selected Italian respondents who quantified their intention to buy the product. In Study 2, a different sample of 34 Italian respondents was solicited with the same stimuli considered in Study 1, and neuropsychological measurements through Electroencephalography (EEG) were registered. A post hoc least significance difference (LSD) test is used to analyse data.FindingsThe results show that only the presence of an image representing an alcoholic beverage's caloric content causes a significant reduction in consumers' purchase intentions. This effect is due to the increase in negative emotions caused by pictorial warning labels.Originality/valueThe findings provide interesting insights on pictorial warning labels, which can influence the intention to purchase alcoholic beverages. They confirmed that the use of images in the warning labels has a greater impact than text, and that the risk of obesity is an effective deterrent in encouraging consumers to make healthier choices.
A topology optimization algorithm based on topological derivative and level-set function for designing phononic crystals
Authors: Yera Rolando , Forzani Luisina , Méndez Carlos Gustavo , Huespe Alfredo E. 
Published: October 2021

PurposeThis work presents a topology optimization methodology for designing microarchitectures of phononic crystals. The objective is to get microstructures having, as a consequence of wave propagation phenomena in these media, bandgaps between two specified bands. An additional target is to enlarge the range of frequencies of these bandgaps.Design/methodology/approachThe resulting optimization problem is solved employing an augmented Lagrangian technique based on the proximal point methods. The main primal variable of the Lagrangian function is the characteristic function determining the spatial geometrical arrangement of different phases within the unit cell of the phononic crystal. This characteristic function is defined in terms of a level-set function. Descent directions of the Lagrangian function are evaluated by using the topological derivatives of the eigenvalues obtained through the dispersion relation of the phononic crystal.FindingsThe description of the optimization algorithm is emphasized, and its intrinsic properties to attain adequate phononic crystal topologies are discussed. Particular attention is addressed to validate the analytical expressions of the topological derivative. Application examples for several cases are presented, and the numerical performance of the optimization algorithm for attaining the corresponding solutions is discussed.Originality/valueThe original contribution results in the description and numerical assessment of a topology optimization algorithm using the joint concepts of the level-set function and topological derivative to design phononic crystals.
On the foreign direct investment–economic growth relationship in Africa: does economic freedom mediate this relationship?
Authors: Aluko Olufemi Adewale , Ibrahim Muazu , Vo Xuan Vinh 
Published: October 2021

PurposeIn this study, the authors examine how economic freedom mediates the impact of foreign direct investment (FDI) on economic growth in Africa.Design/methodology/approachBy using data from 41 countries over the period 2000–2017, the authors invoke Seo and Shin's (2016) sample splitting approach while relying on the recently developed Seo et al.'s (2019) computationally robust bootstrap algorithm to achieve the purpose of this study.FindingsThe authors find evidence of economic freedom threshold that bifurcates the link between FDI and economic growth in Africa. More precisely, FDI does not improve overall economic growth for African countries whose economic freedom index is below the estimated threshold while significantly spurring growth for African countries with economic freedom above this threshold.Practical implicationsAfrican countries need to strive towards improving their level of economic freedom through the strengthening of rule of law, reducing government size, promoting regulatory efficiency and further opening of the goods and capital markets.Originality/valueThe association between FDI and economic growth has been well documented. While the positive theoretical postulations are almost conclusive, empirical literature on the precise effect of FDI remains contentious and far from being settled. What is missing in the existing literature in Africa is whether countries' level of economic freedom mediates how FDI explains the variations in economic growth across African countries. The authors fill this research gap.
Effect of open-mindedness and humble behavior on innovation: mediator role of learning
Authors: Al-Abrrow Hadi , Fayez Akram Sami , Abdullah Hasan , Khaw Khai Wah , Alnoor Alhamzah , Rexhepi Gadaf 
Published: October 2021

PurposeThis study examines the effect of open-mindedness (OM) and humble behavior on innovation through the mediator role of learning.Design/methodology/approachA quantitative design was adopted to collect data through a questionnaire-based survey distributed to 400 employees at international oil companies operating in Iraq.FindingsThe results indicate a direct positive of learning on innovation. Hence, there is a natural and partial indirect effect of humble behavior on innovation and a full indirect impact of OM on innovation through learning.Research limitations/implicationsThe theoretical and practical implication of this study indicates that individual learning on innovation is vital when the workplace environment has a diversity of cultural backgrounds. Moreover, the implications of this study may contribute to determining the weakness of invention in such industries because of the effect of personal characteristics (i.e. OM and humble) on readiness to learn.Originality/valueIn a culturally diverse work environment, the behavior of humble and OM will have a significant impact on the intensity of individual learning, which would increase innovation in the context of the oil industry. Therefore, the essence of originality in this study is to lead the managers to pay attention to the psychological aspects of the workplace environment that require learning and innovation.
Determinants of stock market reaction to cross-border acquisitions: evidence from emerging economies
Authors: Jain Samta , Kashiramka Smita , Jain P. K. 
Published: October 2021

PurposeThe global economy has witnessed an exponential increase in cross-border acquisitions (CBAs) by emerging market companies (EMCs), demanding a relook at their internationalization strategy. The purpose of the study is to investigate whether the announcement of CBAs by EMCs creates value for the equity-holders of acquiring firms and identify factors affecting the valuation of acquiring companies.Design/methodology/approachThe paper investigates the announcement impact of CBAs of CNX Nifty 500 Indian and SSE 380 Chinese companies. The event study analysis of 553 Indian and 125 Chinese acquisitions supports the contention that CBAs are indeed a strategic choice of EMCs for value creation.FindingsCBAs generate positive and statistically significant abnormal returns for shareholders of both Indian and Chinese acquirers. The markets, however, differ in terms of their motivations; country-level factors have been observed to exert significant influence on the returns of Indian acquirers. Indian companies experience larger value creation on acquiring firms established in developed, institutionally closer and/or economically distant markets. The findings support the asset-seeking motive of Indian companies.Originality/valueThe research work contributes to the evolving stream of CBAs literature with a focus on the globalization strategies of EMCs. The present study is a modest attempt to lay the foundation for a new theoretical framework (asset-seeking perspective) of overseas acquisitions from emerging economies. The existing studies on emerging economies have emphasized, in isolation, either Indian CBAs or international acquisitions by Chinese firms. Being so, the study is unique and original in the sense that it is a comparative study of India and China.
Does investor sentiment differently affect stocks in different sectors? Evidence from China
Authors: Niu Hongli , Lu Yao , Wang Weiqing 
Published: October 2021

PurposeThis paper aims to investigate the dynamic relationship between the investor sentiment and the return of various sectors in the Chinese stock market.Design/methodology/approachThe wavelet coherence and wavelet phase angle approaches are used to study the lead–lag associations between sentiment index and stock returns in a time–frequency way. The multiscale linear and nonlinear Granger causality tests are performed to explore whether there is a causality between them.FindingsThe empirical results show that during normal period, investor sentiment index has a stronger relationship with stock returns of industrials, consumer discretionary, health care, utilities, real estate and financial sectors. In crisis period, investor sentiment has a significant positive relationship with all industry sectors. In the short term, there is bidirectional causality between investor sentiment and stock returns of all sectors. In the medium and long run, almost all sector stock returns Granger-cause the investors' sentiment index but investor sentiment does not Granger-cause all sectors, which is in contrast to the developed markets.Practical implicationsThe interindustry impact of investment sentiment on the stock market can help construct arbitrage portfolio by investors who are interested in Chinese stock market.Originality/valueThis paper focuses on the industry sector differences of investor sentiment impact on the Chinese stock market. As far as the authors know, this is the first paper to explore the time–frequency relationship between sentiment index and industry stock returns in China using the time–frequency method based on wavelet coherence, which considers the heterogeneity of different types of investors' responses to various economic and financial events.
Customer participation in service innovation using SNS smartphone apps: an investigation of the Indian hotel service industry
Authors: Sarmah Bijoylaxmi , Shukla Yupal , Chatterjee Ravi , Kamboj Shampy 
Published: October 2021

PurposeExisting research lacks a comprehensive understanding of the individual factors that may transform an “ordinary” customer into an active participator in the service innovation process and/or the situational factors that determine a customer's participation in any stage of the service innovation process. The purpose of this paper is to fill these research gaps by developing and validating a conceptual framework on CPSIB in the Indian hotel industry by using smartphones to access SNS apps.Design/methodology/approachA cross-sectional survey design method was used in this study to collect representative samples with greater response rates. The target population included in this study were hotel guests of all of the star category hotels in New Delhi who had earlier experiences of staying in star category hotels. Structured questionnaire was formulated, which was later pre-tested to confirm its reliability and validity. Out of 400 questionnaires, 348 usable responses were obtained.FindingsThis research examines CPSIB in the Indian hotel industry using SNS smartphone apps. It confirms that user innovativeness and perceived trust in the service provider determine customers' participative service innovation behavior, which further results in positive adoption intention via SNS smartphone apps.Research limitations/implicationsThis research provides valuable insights into the hotel industry, specifically in the context of India. However, it has a few limitations that must be taken into account when generalizing its results.Practical implicationsFirst, investigating the key antecedents and consequences of CPSIB has important implications for marketing practitioners. Moreover, it was observed that hotel guests with higher innovativeness and trust in the service provider would show positive participative service innovation behavior toward innovating new services along with the hotel service providers, which may result in a positive adoption intention toward the newly developed services. Second, hoteliers should integrate hotel guests into hotel service innovation via the use of SNS smartphone apps.Social implicationsThis research conceptualizes that user innovativeness is a driving factor for CPSIB that may further generate a positive adoption intention toward newly developed services.Originality/valueTo the best of the authors’ knowledge, only a very few studies have tested the interrelationships between individual factors and customer participation behavior in the mobile technology-mediated service ecosystem simultaneously. Furthermore, research examining the individual and situational factors influencing CPSIB and adoption intention towards newly developed services using SNS smartphone apps is still in a nascent stage.
Contagions in interconnected power markets
Authors: Handika Rangga 
Published: October 2021

PurposeThis paper offers an alternative approach to assessing contagions in price and load in the Australian interconnected power markets. This approach enabled us to identify a high-risk region and assess the direction of contagions from both buyers' and sellers' perspectives.Design/methodology/approachThe author used a multinomial logit method to measure contagions. Having identified the exceedance and coexceedances, the author estimated the multinomial logit coefficients of the covariates explaining the probability of a certain number of coexceedances.FindingsMarket participants should recognize the presence of contagion risk and scrutinize price and load dynamics in the NSW and VIC regions to anticipate any simultaneous extreme changes. Regulators need to stabilize the demand and supply sides in those regions to minimize any possible contagions.Originality/valueThis paper presents a pioneering study investigating contagion in the Australian interconnected power markets.
The influence of past situations on present behaviors: how school life predicts managerial learning
Authors: Rigolizzo Michele , Zhu Zhu , Cruz Adrianna 
Published: October 2021

Purpose
The purpose of this paper is to examine the influence of supervisors’ past experiences in school on their present learning behaviors.

Design/methodology/approach
Data were gathered in a time-lagged study. Supervisors populated a previously validated survey about their quality of school life. One week later, a direct measure of learning behaviors was used to determine the extent to which they were motivated to learn in general, and their motivation to exert time and effort in a learning task.

Findings
Supervisors who found more satisfaction in school were more motivated to learn in general. Those who were more committed to the work of school spent more time on learning and exerted more effort when practicing a new skill.

Research limitations/implications
Results are valid for supervisors engaging in a learning task relevant to their role. However, because the results are based on direct observation of their learning behavior years later, the findings suggest that school experiences influence workplace learning for employees at all levels.

Practical implications
Typically, organizations consider the degree employees attain and the content of their learning. This study suggests that organizations should also be considering the habits and attitudes toward learning that employees developed while at school.

Originality/value
This study bridges educational and workplace learning by examining how the habits and attitudes developed in school settings impact managerial learning, even years later.
Workplace ostracism and employee silence: an identity-based perspective
Authors: Sahabuddin Md , Tan Qingmei , Ayub Arslan , Fatima Tehreem , Ishaq Mustafa , Khan Ali Junaid 
Published: October 2021

PurposeExtant research has shown that workplace ostracism (WO) elicits counterproductive work behaviors, such as employee silence (ES), culminating in reduced job performance. However, lesser is known about the factors that buffer against this underlying linkage. With an emphasis on conservation of resource (COR) theory and social identity theory, this study investigates the hitherto unexplored moderating roles of moral identification (MI) and organizational identification (OI) in the relationship between WO and ES.Design/methodology/approachThe study employed a time-lagged design to collect multi-source data from 250 employees working in the service sector organizations in Pakistan. Data are analyzed in SMARTPLS (v 3.3.3) to assess the measurement model and the structural model.FindingsResults reveal that WO is positively correlated with ES and negatively correlated with job performance. At the same time, ES mediates the negative relationship between WO and job performance. In addition, MI and OI buffer against the positive connection between WO and ES. The positive association between WO and ES is less pronounced at high levels of MI and OI and vice versa.Practical implicationsThe findings indicate that there is potential value in developing MI and OI, for which several interventions are discussed.Originality/valueThis study is one of the few efforts to outstretch the boundary conditions of ES. Moreover, this is the first study to investigate the role of identity-based perspective in the relationship between WO and ES.
Lowered Expectations and Shifting Standards? – Two Survey Experiments exploring Neo‐populist Political Scandals and the Perceived Trustworthiness of Politicians
Authors: Karv Thomas , Strandberg Kim 
Published: October 2021

The recent wave of electoral success for right‐wing populists has coincided with an increase in political scandals as well as a new, neo‐populist type, of scandals. Thus, it has been argued that the public might have become increasingly numb to scandals and that scandalous behaviour by populist politicians is often neglected as part of their ‘typical’ behavior. In this article, we explore how involvement in neo‐populist scandals affects the public's trust in individual politicians and whether this effect is moderated by the politician's party affiliation – both populist and non‐populist – and party preferences of citizens judging a scandal. We also compare the effects with two other types of traditional scandals, involving financial misconduct or an extra‐marital affair. Two factorial vignette survey experiments (N = 1,000 and 1,577) were carried out in 2017 and 2019 to explore whether and how neo‐populist scandals affect trust in politicians under varying circumstances. The key findings are that neo‐populist scandals clearly have negative effects on trust for a scandalous politician but the judgement of scandals are subject to strong partisanship effects. Thus, supporters of a populist party do not see a scandalous behaviour by a populist politician as harmful for their trust in that politician. This effect is not evident among supporters of a traditional party when ‘their’ politician is involved in a scandal. Populist supporters also tend not to see scandals in general as especially harmful to their trust in politicians, regardless of type of scandal nor affiliation of a scandalous politician.
Sex and habitat differences in size and coloration of an amphibian's poison glands match differential predator pressures
Authors: ZAMORA‐CAMACHO Francisco Javier 
Published: October 2021

AbstractChemical defenses are frequently accompanied by salient color patterns actively avoided by predators, a phenomenon referred to as aposematism. However, the production of both chemical defenses and pigments is costly, and is thus expected to be reduced under mild predator pressure. In this work, I compared the size and coloration of parotoid glands (2 dorsal, external swollen structures that secrete toxins in toads) of male and female Epidalea calamita toads from agrosystems and from pine groves. I also quantified the predator attacks received by plasticine toad models, whose “parotoid glands” differed in size and color conspicuousness, exposed in each habitat. Predators avoided models with large and conspicuous parotoid glands, but models in agrosystems were more often attacked. Concerning actual toads, agrosystem and male individuals had larger parotoid glands, presumably implying greater production of chemical defenses than in pine grove and female conspecifics. These findings are aligned with previous research suggesting that both agrosystem toads and males in this system are subjected to a more intense predator pressure. Difference between parotoid gland and dorsum coloration was greater in agrosystem toads. A marked internal pattern could function as an aposematic signal, which could counteract increased predator pressure.
Chromosome‐level genome assemblies of two cotton‐melon aphid Aphis gossypii biotypes unveil mechanisms of host adaption
Authors: Zhang Shuai , Gao Xueke , Wang Li , Jiang Weili , Su Honghua , Jing Tianxing , Cui Jinjie , Zhang Lijuan , Yang Yizhong 
Published: October 2021

AbstractThe cotton‐melon aphid Aphis gossypii is a sap‐sucking insect that is considered a serious global pest. The species is distributed over a large geographical range and uses a wide variety of hosts, with some populations being specialized to attack different plant species. Here, we provide de novo chromosome‐level genome assemblies of a cotton specialist population (Hap1) and a cucurbit specialist population (Hap3). We achieved this by using a combination of third‐generation sequencing platforms, namely Illumina and Hi‐C sequencing technologies. We were able to anchor a total of 334.89 Mb (scaffold N50 of 89.13 Mb) and 359.95 Mb (scaffold N50 of 68.88 Mb) to four chromosomes for Hap1 and Hap3, respectively. Moreover, our results showed that the X‐chromosome of Hap3 (113.01 Mb) was significantly longer than that of Hap1 (100.26 Mb), with a high level of sequence conservation between the aphid species. We also report variation in the number of protein‐coding genes and repeat sequences between Hap1 and Hap3. In particular, olfactory and gustatory receptor genes underwent a high level of gene duplication and expansion events in A. gossypii, including between Hap1 and Hap3. Moreover, we identified two glutathione S‐transferase genes which underwent single gene duplications in Hap3, and tandem duplication and inversion events affecting the cytochrome P450 monooxygenase between Hap1 and Hap3, all of which include the CYP3 family. Our results illustrate the variance in the genomic composition of two specialized A. gossypii populations and provide a helpful resource for the study of aphid population evolution, host adaption and insecticide resistance.