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461.
462.
Andreas Ortmann Mark Schlesinger 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1997,8(2):97-119
This article examines the trust hypothesis: the claim that asymmetric information can explain the existence of non-profit
enterprise in certain markets. We argue that this hypothesis, in order to be viable, has to meet three challenges: ‘reputational
ubiquity’, ‘incentive compatibility’ and ‘adulteration’. Drawing on modern agency theory, we conclude that the trust hypothesis
stands on shaky ground. It can be sustained only under particular conditions that have been neither carefully described in
theory nor subject to empirical assessment. The available evidence, patchy and inadequate as it is, seems to suggests that
there are some ownership-related differences in aspects of organisational performance connected with asymmetric information.
However, there is little evidence that this relates to trustper se or provides a rationale for the existence of non-profit ownership in these industries. We conclude with a plea for substantial
research on consumer expectations and provider motivations.
Visiting Associate Professor at Rutgers University, New Brunswick, New Jersey. 相似文献
463.
Family offices are organisations dedicated to the management of entrepreneurial families’ private wealth. Based on agency theory, we analyse types of family offices with regard to the families’ goals and the control mechanisms used to ensure goal achievement. Family-dominant management and private client structures involve stronger emphasis on non-financial goals in single and multi-family offices than in non-family-dominant management and open client structures. Variations in family involvement, ranging from family dominance to the complete absence of family ownership and/or management, and diverse client structures justify the differential reliance on formal and informal control mechanisms. 相似文献
464.
This article looks at the history of business schools and identifies specific characteristics that are common to European management schools. On the basis of these characteristics, European management is subsequently defined as a cross-cultural, societal management approach based on interdisciplinary principles. In a final step, a closer look is taken at how European business schools should prepare their students for the unique European management context. It is suggested that such schools should provide courses on cross-cultural management and courses explaining the interdependencies between the private and public sector, offer students opportunities to experience other cultures over the course of their studies, and teach management from an interdisciplinary and practically-oriented perspective. 相似文献
465.
466.
Achilleas Vassilopoulos Andreas C. Drichoutis Rodolfo M. Nayga Jr. Panagiotis Lazaridis 《Journal of applied statistics》2018,45(12):2269-2278
The prevalence of obesity among US citizens has grown rapidly over the last few decades, especially among low-income individuals. This has led to questions about the effectiveness of nutritional assistance programs such as the Supplemental Nutrition Assistance Program (SNAP). Previous results on the effect of SNAP participation on obesity are mixed. These findings are however based on the assumption that participation status can be accurately observed, despite significant misclassification errors reported in the literature. Using propensity score matching, we conclude that there seems to be a positive effect of SNAP participation on obesity rates for female participants and no such effect for males, a result that is consistent with several previous studies. However, an extensive sensitivity analysis reveals that the positive effect for females is sensitive to misclassification errors and to the conditional independence assumption. Thus analogous findings should also be used with caution unless examined under the prism of classification errors and of other assumptions used for the identification of causal parameters. 相似文献
467.
Janek Thomas Andreas Mayr Bernd Bischl Matthias Schmid Adam Smith Benjamin Hofner 《Statistics and Computing》2018,28(3):673-687
We present a new algorithm for boosting generalized additive models for location, scale and shape (GAMLSS) that allows to incorporate stability selection, an increasingly popular way to obtain stable sets of covariates while controlling the per-family error rate. The model is fitted repeatedly to subsampled data, and variables with high selection frequencies are extracted. To apply stability selection to boosted GAMLSS, we develop a new “noncyclical” fitting algorithm that incorporates an additional selection step of the best-fitting distribution parameter in each iteration. This new algorithm has the additional advantage that optimizing the tuning parameters of boosting is reduced from a multi-dimensional to a one-dimensional problem with vastly decreased complexity. The performance of the novel algorithm is evaluated in an extensive simulation study. We apply this new algorithm to a study to estimate abundance of common eider in Massachusetts, USA, featuring excess zeros, overdispersion, nonlinearity and spatiotemporal structures. Eider abundance is estimated via boosted GAMLSS, allowing both mean and overdispersion to be regressed on covariates. Stability selection is used to obtain a sparse set of stable predictors. 相似文献
468.
Internal Audit functions within Greek banks are imposed both by the Greek law for publicly listed enterprises (Law 3016/17.5.2002), as well as by the Bank of Greece (Bank of Greece Governor’s Act. Number 2577/9-3-2006). Based on the traditional approach of internal audit within Greek Banks, an inspection of branches and credit on a tick and check (compliance) basis was conducted. Recent research (Koutoupis and Tsamis, Fourth European Academic Conference on Internal Audit and Corporate Governance. Cass Business School, London, United Kingdom, 2006) comes to a conclusion that this approach does not result in adequate coverage of risks. In addition, new international regulations and best practices such as basel committee on banking supervision requirements, COSO enterprise risk management (ERM) suggested framework, as well as The Institute of internal auditors standards for professional practice of internal auditing (standards) were in most cases partially or fully ignored by the vast majority of Greek banks. However, minimum requirements regarding the operation of internal audit functions have been set up by the Bank of Greece, which in most cases are followed by the Greek banks, as well as periodically assessed by the above banking regulator. Risk based internal audit (RBIA) was an unknown concept for the vast majority of publicly listed and non-listed Greek enterprises until very recently. Only Greek subsidiaries of US and UK enterprises were aware of the RBIA audit concept (including big foreign banks which operate in Greece as subsidiaries), as they were periodically audited by group audit functions as an immediate result of relevant risk assessments. Also, the majority of Greek publicly listed enterprises use the audit cycle approach in developing their long term (3 year) and annual audit plans, which means that they audit specific business cycles and activities within a predefined time interval (1–3 years). Audit planning is based on the head’s of internal audit and internal auditors experience without formal application of risk assessment and audit planning techniques. All Greek banks that participated in the corporate governance and internal auditing survey (Koutoupis, Third European Academic Conference on Internal Audit and Corporate Governance, 2005) stated that they follow a risk-based audit approach and develop risk based audit plans; however the vast majority of them could not prove it through a clearly documented risk assessment and risk-based audit plan. Sarbanes–Oxley Act (2002) directed National Bank of Greece to adjust its audit planning process to a risk based one. Also, other big Greek banks (case study 1–3) are now either considering or adopting a RBIA approach, mostly because of Bank of Greece pressures. internal audit functions within small banks still follow the audit cycle approach. In this paper, current status of Greek banks RBIA approach will be discussed based on relevant references, as well as on three case study examples. This research will be based on relevant literature review, as well as authors’ professional experience in past and current projects related to risk assessment, audit planning and RBIA. Specifically, RBIA approach will be critically evaluated based on three big Greek banks analysis on a case study format and benchmark against basel requirements, ERM and standards for professional practice of internal auditing. Based on the relevant assessment, best practices and recommendations for improvement will be identified. 相似文献
469.
Measurement and Pricing of Risk in Insurance Markets 总被引:1,自引:0,他引:1
The theory and practice of risk measurement provides a point of intersection between risk management, economic theories of choice under risk, financial economics, and actuarial pricing theory. This article provides a review of these interrelationships, from the perspective of an insurance company seeking to price the risks that it underwrites. We examine three distinct approaches to insurance risk pricing, all being contingent on the concept of risk measures. Risk measures can be interpreted as representations of risk orderings, as well as absolute (monetary) quantifiers of risk. The first approach can be called an "axiomatic" one, whereby the price for risks is calculated according to a functional determined by a set of desirable properties. The price of a risk is directly interpreted as a risk measure and may be induced by an economic theory of price under risk. The second approach consists in contextualizing the considerations of the risk bearer by embedding them in the market where risks are traded. Prices are calculated by equilibrium arguments, where each economic agent's optimization problem follows from the minimization of a risk measure. Finally, in the third approach, weaknesses of the equilibrium approach are addressed by invoking alternative valuation techniques, the leading paradigm among which is arbitrage pricing. Such models move the focus from individual decision takers to abstract market price systems and are thus more parsimonious in the amount of information that they require. In this context, risk measures, instead of characterizing individual agents, are used for determining the set of price systems that would be viable in a market. 相似文献
470.
Social entrepreneurship has emerged as an important means of addressing grand challenges. Although research on the topic has accelerated, scholars have yet to articulate an overarching framework that links the different pathways taken by social entrepreneurs with the positive effects of these efforts. To address this shortcoming, we conducted a systematic literature review which enabled us to conceptually differentiate between social value and social change as distinct outcomes of social entrepreneurship and identify seven pathways for achieving these outcomes. Building on our analysis, we outline a research agenda for questions pertaining to: the dynamics between social value and social change; how contextual factors and social entrepreneurs influence various pathways; design principles of business models and innovations that facilitate social value and social change; and defining, measuring, and ensuring accountability for social value and social change. 相似文献