Contextual Framing and Monetary Incentives in Field Experiments on Risk Preferences: Evidence from German Farmers

Recent studies cast doubt on the ability of abstract experiments to predict decision‐making in the field. Thus, scholars have argued for more ‘realism’ by introducing context to field experiments. Yet, such realism may work against the induced values of monetary incentives in economic experiments. It is an open question whether contextual framing works best with or without inducing values, through methods such as the use of monetary incentives. Using a sample of 146 German farmers, we compare experimentally the predictive power of a framed lottery in an agricultural context vs. using an abstract version. For one half of the sample, lotteries are incentivised; for the other half, they are hypothetical. Although risk preferences differ between treatments, all four lottery tasks correlate poorly with farmers’ real‐world use of risk management instruments such as harvest or hail insurance. Subjects who start with an agricultural framing are willing to take significantly greater risks in the lotteries. More generally, our findings cast doubt on the ability of lottery tasks to predict risk‐taking in the field.     

Threats to the Validity of Logistics and Supply Chain Management Research

To increase the relevance of logistics and supply chain academic research, this paper recommends the development and testing of middle‐range theory and practice‐level theory. Yet, there are a number of research issues that arise when academic researchers test middle‐range and practice‐level theory, both in measuring constructs and in testing theoretical relationships between constructs. Concerning the measurement of constructs, this paper recommends that academic researchers pay more attention to content validity and undertake rigorous processes to ensure content validity. In addition, academic researchers need to more explicitly define constructs as either reflective or formative. If the construct is defined as formative, then the traditional statistical approaches to validate these measurement scales are not recommended. The appropriate use of employing single‐item measures for concrete constructs is discussed. In regard to conducting hypothesis tests, research issues associated with multicollinearity and omitted variable bias are discussed. Relative weight analysis is ideal for testing theoretical models and research hypotheses when survey data are obtained, multicollinearity is present, and there are a large number of independent variables predicting a dependent variable. Thus, relative weight analysis is ideal for testing research hypotheses in logistics and supply chain management.     

The institution efficiency of stock price limits： An experimental analysis on the two stocks market with continuous bid

Price limits in product market have been discarded in classic microeconomics. However, price limits affect the trade behavior of the same agent, since agents in the stock market change their trade status frequently. Due to the controversy on the institution effectiveness of the price limits in stock market, this paper design an experimental market with two stocks with continuous bid, in which we investigate the impact of the price limits on the stock market. The results show that the price limits moderate the price volatility within and between the trades periods, thus can stabilize stock price. In addition, price limits, when measured by traditional approach, restrain the fluidity of the market, reduce the volatility of transaction shares and maintain durative of fluidity. While volatility-based fluidity measurements show that the fluidity is enhanced significantly in stock market with price limits.     

GIS属性信息可视化及其有效性分析

专题地图是GIS属性信息可视化表达的一种重要方式,但存在一个缺陷就是地区面积大小与属性信息的数量差别太大影响读图者的视觉。面域拓扑图是对面状区域分布的专题属性定位表达,对空间区域的形状进行几何变换,使得面积大小与表达的属性信息数量成一定比率关系,将区域内的属性信息映射为面积大小来表达其间的数量差异。通过调查分析,面域拓扑图在表达GIS数量信息时比专题地图具有较好有效性。     

Postservice Recovery Customer Satisfaction in Indian Retail Banking: Scale Development and Validation

The construct of postservice customer satisfaction with respect to Indian retail banking has been studied. Furthermore, the development and validation of the postservice recovery customer satisfaction scale in Indian retail banking is detailed. The scale development process was carried out over three stages (item generation, scale purification, scale validation) and comprised of conducting depth interviews and focus groups for item generation and three separate phases of data collection, involving a total of 851 individual respondents. The data provide evidence for face, content, discriminant and convergent validity, dimensionality, reliability, and generalizability of the customer satisfaction scale in Indian retail banking.     

A commentary on ‘The long road to publishing: A user-friendly exposé’

Many of the pressing questions currently facing accounting education researchers are best addressed through experimental research. For example, experiments are useful in testing the effect of innovative educational practices on student learning. The purpose of this paper is to briefly review the literature addressing sources of invalidity which may cloud the results of experiments and describe several procedures which are helpful in controlling for these sources of invalidity. Examples are provided, from published accounting education research studies, which illustrate how researchers have attempted to address several of these threats to validity. Experiments must be carefully planned and designed, so the experiment on completion fulfills the objectives of the researcher. Although experiments are more difficult to conduct in the educational environment than in a scientist's laboratory, many procedures are available to assist accounting education researchers in designing tightly controlled experiments.     

论物权登记效力与合同效力的区分

不区分物权登记效力与合同效力,合同的效力就有可能由一方当事人决定,这显然有悖于民法理论。因此,坚持区分合同效力与登记效力,是遵循民法基本理论、保护合同当事人合法权益的现实需要。物权登记的效力由《物权法》规范,合同的效力由《合同法》决定;登记效力指向物权,合同效力指向债权;合同效力取决于合意,物权效力取决于登记。科学认识和运用不动产物权的登记效力,正确行使物权,有利于更好地实现《物权法》确定的“定分止争、物尽其用”的目标。     

接受理论源流及其应用价值分析

人类接受活动广泛存在于信息传播、文学作品欣赏和知识教育与学习的过程中,所谓接受不仅仅是信息的给予和传递．还包括对象在接受信息过程中感知、判断和内化的过程,而接受过程的有效性在于使传导者、传导内容、传导渠道和受传者有较高的契合程度。将接受理论应用到德育教育中,对于德育教育方式方法的改进与创新,以及德育教育途径的拓展与优化亦具有重要的参照价值。     

Web文本挖掘中模糊聚类的有效性评价研究

本文研究了基于模糊聚类的Web文本挖掘和模糊聚类有效性评价函数,并将其应用于Web文本挖掘中模糊聚类有效性评价。仿真实验表明该方法有一定的准确性和可行性。     

直接配送战略的有效性分析

在一个配送中心和多个零售商组成的非限制水平库存路径问题的基础上,研究直接配送战略的效率。采用数学推导法导出任意配送战略的下界,分析直接配送战略经典情况的有效性,得出在经典情况下直接配送战略有效性的计算公式,给出使用直接配送战略的标准。计算结果表明,可以通过改变零售商的需求量、车容量和配送频率等,提高直接配送战略的有效性。最后,通过实例验证和分析了直接配送战略的有效性。