新企业创业导向转化为绩效的新企业能力:理论模型与中国实证研究

新企业高失败率和成长巨大差异性引起了学者们广泛关注,并导致创业导向研究的丰富成果.鉴于现有研究陷于新企业创业导向与绩效问无限追加调节和中介变量的复杂模型中,而忽视了对其中关键要素的深入挖掘,本文基于演化经济学、战略理论和组织理论,认为新企业从创业导向到组织绩效,中间需要一定的转化路径与能力支持,并提出新企业能力构念,构建了"创业导向一新企业能力一新企业绩效"模型,并通过150份有效样本验证了中国背景下新企业创业导向和新企业能力的维度构成以及与新企业绩效的关系,同时也发现了新企业创业导向与绩效之间的环境敌意性和环境动态性的调节作用、新企业能力的显著中介效应.     

Unsold Versus Unbought Commitment: Minimum Total Commitment Contracts with Nonzero Setup Costs

We study a minimum total commitment (MTC) contract embedded in a finite‐horizon periodic‐review inventory system. Under this contract, the buyer commits to purchase a minimum quantity of a single product from the supplier over the entire planning horizon. We consider nonstationary demand and per‐unit cost, discount factor, and nonzero setup cost. Because the formulations used in existing literature are unable to handle our setting, we develop a new formulation based on a state transformation technique using unsold commitment instead of unbought commitment as state variable. We first revisit the zero setup cost case and show that the optimal ordering policy is an unsold‐commitment‐dependent base‐stock policy. We also provide a simpler proof of the optimality of the dual base‐stock policy. We then study the nonzero setup cost case and prove a new result, that the optimal solution is an unsold‐commitment‐dependent (s, S) policy. We further propose two heuristic policies, which numerical tests show to perform very well. We also discuss two extensions to show the generality of our method's effectiveness. Finally, we use our results to examine the effect of different contract terms such as duration, lead time, and commitment on buyer's cost. We also compare total supply chain profits under periodic commitment, MTC, and no commitment.     

40 years of storming: a historical review of Tuckman's model of small group development

This paper presents a historical overview of the Tuckman model describing the stages of group development. Created by Bruce W. Tuckman in 1965 and revised by Tuckman and Mary Ann Conover Jensen in 1977, the model presents the well-known stages of forming, storming, norming, performing, and adjourning. This model has a unique history in that it was initially popular among HRD practitioners and later became common in academic literature as well. Its significance was a reflection of its time, responding both to the growing importance of groups in the workplace and to the lack of applicable research. This paper uses a literature review to trace the history of the model in terms of field practice and academic research.     

Non-governmental organizations and the socio-economic development of low-income women in India

This literature review focuses on the socio-economic development of low-income women in India. The study describes how non-governmental organizations (NGOs) in India attempt to fill gaps in governmental support for marginalized women in the Indian workforce. Some scholars have recommended expanding the boundaries of human resource development (HRD) to include multiple topics in a variety of contexts to investigate the holistic development of individuals. Gaps exist in current HRD literature regarding the status of low-income women in India. This article argues that many Indian NGOs are capable of serving the needs of women in informal work sectors and in addition, they can provide a broad non-traditional context for investigating HRD processes and services at a national level.     

Evaluation of Scenarios for Reducing Human Salmonellosis Through Household Consumption of Fresh Minced Pork Meat

Nontyphoidal salmonellosis is the second most frequently reported zoonotic disease in the European Union (EU) and is considered to be a major threat to human health worldwide. The most reported Salmonella serovar in the EU is S. Enteritidis, mainly associated with egg contamination, followed by S. Typhimurium, with the latter being the most predominant serovar isolated from pork. These findings suggest that reducing the Salmonella contamination in the pork production might be a good strategy to prevent and control human salmonellosis in the EU. Recently, a quantitative microbial risk assessment (QMRA) has been developed to assess the risks for human salmonellosis due to home consumption of fresh minced pork meat in Belgium.⁽ 1 ⁾ The newly developed risk model is called the METZOON model. In the current study, the METZOON model was used to evaluate the effectiveness of different hypothetical Salmonella mitigation strategies implemented at different stages of the minced pork production and consumption chain by means of a scenario analysis. To efficiently evaluate the mitigation strategies, model results were obtained by running simulations using the randomized complete block design. The effectiveness of a mitigation strategy is expressed using point and interval estimates of the effect size for dependent observations, expressed as the standardized difference in population means. The results indicate that the most effective strategies are taken during the slaughter processes of polishing, evisceration, and chilling, and during postprocessing, whereas interventions in the primary production and at the beginning of the slaughter process seem to have only a limited effect. Improving consumer awareness is found to be effective as well.     

Characterizing Dose-Response Relationships in Multiple Cancer Bioassays

In the evaluation of chemical compounds for carcinogenic risk, regulatory agencies such as the U.S. Environmental Protection Agency and National Toxicology Program (NTP) have traditionally fit a dose-response model to data from rodent bioassays, and then used the fitted model to estimate a Virtually Safe Dose or the dose corresponding to a very small increase (usually 10(-6)) in risk over background. Much recent interest has been directed at incorporating additional scientific information regarding the properties of the specific chemical under investigation into the risk assessment process, including biological mechanisms of cancer induction, metabolic pathways, and chemical structure and activity. Despite the fact that regulatory agencies are currently poised to allow use of nonlinear dose-response models based on the concept of an underlying threshold for nongenotoxic chemicals, there have been few attempts to investigate the overall relationship between the shape of dose-response curves and mutagenicity. Using data from an historical database of NTP cancer bioassays, the authors conducted a repeated-measures Analysis of the estimated shape from fitting extended Weibull dose-response curves. It was concluded that genotoxic chemicals have dose-response curves that are closer to linear than those for nongenotoxic chemicals, though on average, both types of compounds have dose-response curves that are convex and the effect of genotoxicity is small.     

The Danish psychosocial work environment and symptoms of stress: The main,mediating and moderating role of sense of coherence

The aim of this cross-sectional study was to explore the main, mediating and moderating role of sense of coherence (SOC) on stress symptoms and on the association between perceived psychosocial work environment and stress symptoms. The sample includes 2053 Danish employees from 52 workplaces. Hierarchical regression models were applied for each measure of stress. The results strongly supported the presence of a main effect for SOC. People with high levels of SOC experienced fewer stress symptoms. A mediating effect of SOC was also supported. Thus, SOC in part explained the association between work environment and stress symptoms. In addition, some support for a moderating effect of SOC was found, suggesting that people with higher SOC coped more efficiently with work environmental strain that people with lower SOC. Taken together the regression models explained 11–32% of the variance in stress symptoms. The results suggest that measures of individual factors such as SOC should be included in analyses of the effects of work environmental factors on stress and well-being.     

An evaluation of the effects of a National Health Service Trust merger on the learning and development of staff

Although mergers are increasingly common amongst National Health Trusts in the UK there is limited research on how National Health Service (NHS) mergers influence the learning and development of staff. This paper bridges the gap in the literature, through a case-study of a recent NHS Trust merger. It gives an account of the delivery of human resource development (HRD) post merger as seen through the eyes of staff from across the merged organization. The data were obtained from 21 unstructured interviews, nine group discussions, two focus group discussions and a form of micro-ethnography. In addition, quantitative data were used for triangulation purposes. Findings show that power differentials, cultural clashes and unequal access to training and development amongst staff have resulted in hostility towards the new organization. However, the strong management structures for professional members of staff have facilitated knowledge exchange across boundaries in the merged organization. The paper concludes by suggesting that without senior managers dealing with cultural issues and inequitable development opportunities, a number of unintended consequences of the merger are likely to occur.     

From Breeder Reactors to Butterflies: Risk, Culture, and Biotechnology

Social theories of risk suggest that a combination of scientific and cultural perspectives converge to influence risk perception. This article first surveys sociological perspectives suggesting that risks from modern technological development have become predominant concerns in the social consciousness. Particular attention is given to those theses describing how social elements work to create perception of risks in relation to new technologies. The themes that emerge from this survey are then related to contemporary debates concerning biotechnology. Specific attention is given to recent controversies regarding genetically modified crops, and parallels are drawn between debates over nuclear power and biotechnology. A procedural ethic for public discourse and decision making over the diffusion of genetically modified foods is offered. Ethical and social theories are linked with the hope that by recognizing the social dimensions of debates over new technologies a broader framework for conducting risk analysis may emerge.     

经验、努力程度对审计判断偏误的影响研究

审计质量的好坏直接影响着资本市场能否稳定运行,而影响审计质量的一个重要因素是审计判断偏误。时近效应和证实性偏误是运用锚定与调整启发法进行判断时容易产生的两种判断偏误。本文以我国注册会计师审计为背景,采用实验的方法,检验了审计人员经验、努力程度对这两种判断偏误的影响。实验结果表明:在简单任务中,审计人员的经验够消除时近效应,在复杂任务中,审计人员努力程度的提高有助于降低时近效应的程度,而且审计人员的经验和努力程度对时近效应产生了明显的共同影响;经验和努力程度对证实性偏误没有明显的影响。