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81.
Allocating resources to competing large‐scale infrastructure projects involves multiple objectives. Traditional decision‐aiding methodologies focus on the trade‐offs among performance and resource objectives. Existing methodologies may fail to account for unknown and emergent risks that are typical of large‐scale infrastructure investment allocation problems. In modern portfolio theory, it is well known that a diversified portfolio can be very effective to reduce non‐systematic risks. The approach of diversification is equally important in choosing robust portfolios of infrastructure projects that may be subject to emergent and unknown risks. In this paper, we demonstrate a methodology to analyze and compare the diversification of portfolios of large‐scale infrastructure projects. We classify and explore several metrics of diversification and integrate them with risk and other performance objectives in a multiobjective approach. We test the new metrics and the methodology in a case study of hundreds of millions of dollars of infrastructure investments. The results suggest that the solutions that consider diversification are more robust to emergent risks, thus, identifying an opportunity to incorporate diversification‐based optimization methodologies to support a variety of problems involving large‐scale infrastructure investments.  相似文献   
82.
83.
An income growth pattern is pro‐poor if it reduces a (chosen) measure of poverty by more than if all incomes were growing equiproportionately. Inequality reduction is not sufficient for pro‐poorness. In this paper, we explore the nexus between pro‐poorness, growth, and inequality in some detail using simulations involving the displaced lognormal, Singh–Maddala, and Dagum distributions. For empirically relevant parameter estimates, distributional change preserving the functional form of each of these three‐parameter distributions is often either pro‐poor and inequality reducing, or pro‐rich and inequality exacerbating, but it is also possible for pro‐rich growth to be inequality reducing. There is some capacity for each of these distributions to show trickle effects (weak pro‐richness) along with inequality‐reducing growth, but virtually no possibility of pro‐poorness for growth which increases overall inequality. Implications are considered.  相似文献   
84.
Genetically modified rice with a high folate content, i.e., folate biofortified rice, was recently developed to tackle folate deficiency. A consumer segmentation study is conducted to explore its market potential in the Chinese Shanxi Province, where the burden of folate deficiency is among the world’s highest. Cluster analysis of 451 rice consumers identified three segments: enthusiasts (14.2%), cautious (41.2%), and opponents (44.6%). Enthusiasts obtain the highest score of GM food knowledge and attitudes and have the highest GM rice acceptance rate, followed by cautious and reluctant consumers. Regarding GM food information, enthusiasts use almost entirely audiovisual channels and rely more on the industry, while other segments depend more on informal channels and anti-GM sources. Trust levels in these channels/sources differ between enthusiasts (high), opponents (neutral), and cautious (low). Based on multinomial regression, a targeted communication approach is recommended with a focus on female, cautious consumers and rural, low-educated opponents.  相似文献   
85.
Latino children have lower visit rates to emergency departments and primary care physicians than white children in the USA. Using a nationally representative household survey, this study asked whether parental report of injury was also lower for Latino children, after adjusting for demographic, socioeconomic, health status and health care access factors. Data were obtained on injuries for which medical advice or treatment was received from the National Health Interview Survey (NHIS) from 1997 to 2003. Using the multistage probability design of NHIS, annual rates and adjusted odds of childhood injury report by race and ethnicity were calculated. Respondents reported lower rates of injury for Latino children (6.0 (95% CI 5.3-6.8)/100 person-years) than white children (13.4 (12.7-14.2)/100 person-years). Lower injury rates were mainly due to lower rates of sports injuries and accidental falls. Latino children had lower odds of reported injury than white children, even after adjusting for multiple factors (odds ratio 0.7; 95% CI 0.6-0.8). Lower odds of injury report among Latino children are independent of direct measures of demographic, socioeconomic, health status and health care access factors and indirect measures of acculturation including respondent language and country of origin. Potential explanations include lower exposure to risk, greater child supervision, reporting bias, differences in cultural attitudes toward seeking of health care and reduced health care access that cannot be explored in NHIS due to the form of the current questions. Further research is needed to investigate cultural differences in risk exposure, child supervision and seeking of injury care.  相似文献   
86.
At the height of the COVID-19 related market stress in March 2020, six European countries implemented market-wide short selling bans. Based on a difference-in-difference approach using regulatory data, our estimation finds that the bans are associated with a deterioration in liquidity and trading volumes, and a decrease in volatility, without evidence of price impact. Remarkably, the negative impact persisted after the bans' lift. Liquidity deterioration appears stronger for liquid shares- large-cap, highly fragmented stocks, and stocks with listed derivatives. Sectoral effects are noticed for the stocks most affected by the market stress. Finally, no displacement effect was observed.  相似文献   
87.
Recent techniques and shifts in the environment are often viewed as leading management accountants to adopt a business orientation. However, empirical evidence pointing to clear shifts in the role played by management accountants remains relatively scarce. From in-depth qualitative research based on 73 interviews in ten multinational companies, we identify four distinct styles of management accounting function: discrete, safeguarding, partner, and omnipotent. We show that each style can be associated with one main role: discrete control of managerial behaviour, socialisation of managers, facilitation of decision-making, and centralisation of power. From this in-depth analysis of management accountants' styles and roles we move on to discuss the authority they hold and the independence/involvement dilemma they face.  相似文献   
88.
  • Nowadays, not‐for‐profit organizations and charities face the ageing of donors and a growing debate over monetary donation collection methods. They need to find solutions to attract younger generations of donors. Could this be done using the same methods applied to older generations? This present research investigates social representations (SRs) of giving by younger generations to understand how not‐for‐profit organizations and charities should approach them. The study focuses on SRs of a French sample of 276 individuals from Generation Y born between 1979 and 1991. It uses the free association technique. The results show paradoxical representations of giving. Institutionalization of giving is salient as representation of it as a freely consenting act. The paradox relies also in the strong presence of a relationship with others that parallels the gift as an individualistic choice.
  • Generation Y individuals appear to be sociable, yet they evoke more sharing and solidarity than charity. Institutionalized forms of giving, particularly via charities and not‐for‐profit organizations, are rejected. These individuals seem to express their individuality through practices that resemble sharing rather than giving. From a managerial point of view, these results shed light on the factors liable to cause members of this generation to give, such as (i) the use of social networks, (ii) appealing to pleasure, festivities and efficiency rather than to guilt and duty, and (iii) encouragement to “work within the not‐for‐profit organization”.
Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
89.
ABSTRACT

Drawing on the life histories of migrant women entrepreneurs in the Netherlands and Spain, this article explores the influence of transnational trajectories on their social positions and business strategies. A translocational positional approach enables us to research the transnational strategies of women entrepreneurs more effectively in addition to examining the changes in social positions and gendered identities between the country of origin and the country of destination. This approach contributes to scholarship on ‘context’ by offering a transnational gendered dimension in relation to the effects of social, spatial and institutional factors. Our findings demonstrate how female migrant entrepreneurs redefine their social status in different contexts by establishing a business and challenge, contest or comply with gender relations in their transnational entrepreneurial journeys.  相似文献   
90.
Reviewing a body of work presents unique opportunities for making a theoretical contribution. Review articles can make readers think theoretically differently about a given field or phenomenon. Yet, review articles that advance theory have been historically under-represented in Journal of Management Studies. Accordingly, the purpose of this editorial is to propose a multi-faceted approach for fashioning theoretical contributions in review articles, which we hope will inspire more authors to develop and submit innovative, original, and high-quality theory-building review articles. We argue that advancing theory with review articles requires an integrative and generative approach. We propose a non-exhaustive set of avenues for developing theory with a review article: exposing emerging perspectives, analysing assumptions, clarifying constructs, establishing boundary conditions, testing new theory, theorizing with systems theory, and theorizing with mechanisms. As a journal, Journal of Management Studies is a journal of ideas – new ideas; ideas drawn from reflections on extant theory and ideas with potential to change the way we understand and interpret theory. With this in mind, we think that advancing theory with review articles is an untapped source of new ideas.  相似文献   
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