Aim To improve the efficiency of fatigue material tests and relevant statistical treatment of test data. Methods\ Least square approach and other special treatments were used. Results and Conclusion\ The concepts...Aim To improve the efficiency of fatigue material tests and relevant statistical treatment of test data. Methods\ Least square approach and other special treatments were used. Results and Conclusion\ The concepts of each phase in fatigue tests and statistical treatment are clarified. The method proposed leads to three important properties. Reduced number of specimens brings to the advantage of lowering test expenditures. The whole test procedure has more flexibility for there is no need to conduct many tests at the same stress level as in traditional cases.展开更多
The purpose of this paper is to consider and analyze the profile of modem consumer （careful to consequences of its purchasing decisions in terms of social, ethical and environmental aspects）, in order to identify th...The purpose of this paper is to consider and analyze the profile of modem consumer （careful to consequences of its purchasing decisions in terms of social, ethical and environmental aspects）, in order to identify the role of corporate social responsibility （CSR） for consumer through a study on critical, ethical and responsible purchase of food products. The problem is investigated empirically through a choice experiment method, which is a stated preference method based on a household survey, and through the analysis of the survey on consumer perception. In the food industry, the choice of goods and services requires the consumer decisions that seem to be increasingly dependent on factors not attributable only to the quality/price relationship, instead, they also involve issues directly related to ethics, environment and protection of labor. Today, companies do not limit themselves to undertake CSR, but often they choose to bring the stakeholders aware of such conduct, in an attempt to improve corporate reputation and business results. Therefore, it is to outline a synergy between companies＇ businesses and consumer＇s choice. The findings are based on data from an Italian region, and as such are not directly extendable elsewhere, although they may result to be of interest to other industrialized areas. The paper offers a comprehensive view of relationship between consumers and theme of social responsibility, and how they interface with firms （especially agri-food big companies） and their products; role that CSR plays in relation to the impact it can have on the consumption of food products from buyers; importance that the consumer gives to CSR when purchasing a food product and consumers＇ receptiveness towards sustainable strategies; knowledge degree of particular food categories; consumer willingness to purchase ethically oriented companies＇ products.展开更多
Second-order stochastic dominance plays an important role in reliability and various branches of economics such as finance and decision-making under risk, and statistical testing for the stochastic dominance is often ...Second-order stochastic dominance plays an important role in reliability and various branches of economics such as finance and decision-making under risk, and statistical testing for the stochastic dominance is often useful in practice. In this paper, we present a test of stochastic equality under the constraint of second-order stochastic dominance based on the theory of empirical processes. The asymptotic distribution of the test statistic is obtained, and a simple method to compute the critical value is derived. Simulation results and real data examples are presented to illustrate the proposed test method.展开更多
文摘Aim To improve the efficiency of fatigue material tests and relevant statistical treatment of test data. Methods\ Least square approach and other special treatments were used. Results and Conclusion\ The concepts of each phase in fatigue tests and statistical treatment are clarified. The method proposed leads to three important properties. Reduced number of specimens brings to the advantage of lowering test expenditures. The whole test procedure has more flexibility for there is no need to conduct many tests at the same stress level as in traditional cases.
文摘The purpose of this paper is to consider and analyze the profile of modem consumer （careful to consequences of its purchasing decisions in terms of social, ethical and environmental aspects）, in order to identify the role of corporate social responsibility （CSR） for consumer through a study on critical, ethical and responsible purchase of food products. The problem is investigated empirically through a choice experiment method, which is a stated preference method based on a household survey, and through the analysis of the survey on consumer perception. In the food industry, the choice of goods and services requires the consumer decisions that seem to be increasingly dependent on factors not attributable only to the quality/price relationship, instead, they also involve issues directly related to ethics, environment and protection of labor. Today, companies do not limit themselves to undertake CSR, but often they choose to bring the stakeholders aware of such conduct, in an attempt to improve corporate reputation and business results. Therefore, it is to outline a synergy between companies＇ businesses and consumer＇s choice. The findings are based on data from an Italian region, and as such are not directly extendable elsewhere, although they may result to be of interest to other industrialized areas. The paper offers a comprehensive view of relationship between consumers and theme of social responsibility, and how they interface with firms （especially agri-food big companies） and their products; role that CSR plays in relation to the impact it can have on the consumption of food products from buyers; importance that the consumer gives to CSR when purchasing a food product and consumers＇ receptiveness towards sustainable strategies; knowledge degree of particular food categories; consumer willingness to purchase ethically oriented companies＇ products.
基金This work is supported by Grants from the Natural Science Foundation of China （11271039） Specialized Research Fund for the Doctoral Program of Higher Education+2 种基金 Research Fund of Weifang University （2011Z24） Funding Project of Science and Technology Research Plan of Weifang City （201301019） The Natural Science Foundation of Shandong （ZR2013FL032）.
文摘Second-order stochastic dominance plays an important role in reliability and various branches of economics such as finance and decision-making under risk, and statistical testing for the stochastic dominance is often useful in practice. In this paper, we present a test of stochastic equality under the constraint of second-order stochastic dominance based on the theory of empirical processes. The asymptotic distribution of the test statistic is obtained, and a simple method to compute the critical value is derived. Simulation results and real data examples are presented to illustrate the proposed test method.
